Article by Benedikt S. Vogler and Gerhard Schwab

Article as PDF.


A large amount of affordable, wearable medical and fitness devices have been developed since the beginning of the 2000s. This stems from the rapid improvements in technology and the decrease in price and size for batteries, microchips, and hardware, as well as huge advances in sensor technology. Medical data recorded by those devices contain intimate and personal information. We identify the chances and risks emerging from the availability of this data from an ethical point of view. We will discuss the up- and downsides of this technology, as well as taking into account the psychological effects these devices can have on their users.

Health Movements

The evolution of wearable medical and fitness devices around the turn of the millennium has given rise to some new social health movements. The term ”Quantified Self”, describes the idea ”that using wearable tech to collect detailed data about everything you do, eat and feel will reveal patterns and correlations that can help you improve your life.”[1] It is the foundation for the social movement bearing the same name. Applying the idea of this movement to one's life, people can be assisted in improving their quality of life by a myriad of tools that record their medical data. One has to note that the idea of ”Quantified Self” is therefore marketed by the firms selling those wearable medical and (mainly) fitness devices. To find patterns in the collected data, people either need assisting software, which is mostly provided by the producer of the wearable device or they need sound statistical skills themselves. However, revealing patterns is not the only reason that wearable medical and fitness devices are used. Another reason is that it is possible to obtain objective data, so that it is not possible to have incorrect self-perception, and therefore to achieve one’s goals without the help of a neutral second party. This also ties into the use of wearable devices in the field of medicine, where they are used by doctors to get objective data about the patients' daily activity. We want to note that the line between health and fitness cannot be sharply drawn, as fitness is an integral part of physical and mental health. These devices collect digital data, which allows improved data flow between doctors, health insurers and patients. In 2015 the German law E-Health-Gesetz introduced the ”elektronische Patientenakte” or ”elektronische Gesundheitsakte” (electronic patient/health file). It should store all the relevant health data for easier access. This push for digital information in health is also supported by insurers. Jens Baas, the principal member of the management board of the German health insurer Techniker Krankenkasse, predicts that in the future doctors will have full access to data of fitness trackers.[31]


Wearable health technology ranges from loosely connected to operationally implemented. They are used to record data or interact with the body. All wearable medical and fitness devices have in common that human faculties are enhanced by this technology in one way or the other. One affordable way of achieving this is by devices with the sole functionality to record specific medical data of the user. The intention is that the user or their doctor can get health parameters, to then adjust behavior or the used treatment (e.g. medication). Similarly, fitness trackers are used to record the activity of the wearer so that the user gets a better understanding of their fitness. They can also use these tools to compete against the records of other people, which can help to motivate the user.

Some wearable devices actively change the environment (i. e. here the body) where parts of the environment are fed back into the device. These are called closed-loop systems. Some devices are operationally connected to the body (bioelectronics) e.g. neuroprosthetics like cochlear implants. Other devices are only attached with a band or adhesive tape and others use a combination of methods (e.g. a passive nanosensor under the skin, transmitter outside the body). It is a matter of debate whether exoskeletons are considered wearables, as they are worn and can be taken off, but because of their size, could form another category. Exoskeletons can even be connected to the nervous system. Closed-loop systems are often used to reduce the effects of disabilities. In these use-cases, they are called assistive technology. However, some devices can be used to further improve the abilities of able people. A user who uses machine parts to adjusts their body to their needs can be called a cyborg (cybernetic organism). A cyborg is the connection between man and machine in a self-organizing way. Cyborgs are ubiquitous in our society, but mostly hardly visible. Cyborgs do not have special legal status. Cyborg machine parts are considered property and not body parts in most jurisdictions. Damage to assistive technology or upgrades is therefore considered property damage. The Cyborg Foundation proposed a bill of rights to improve the legal status of cyborgs.[33]

There are also medical devices that are not connected to the body. One instance are sleep trackers, which are attached to the mattress of the sleeping individual. Future developments may allow more unattached devices that take measurements of the body using optical sensors.

Data Transmission

At some point, the data collected by the devices need to be processed and made visible. Because the devices are so small, it makes sense to transmit the data to another device which provides a (bigger) display and more processing power. Transmissions via a cable are very secure because physical access to the devices or the cable itself is needed. Cables are however cumbersome and sometimes impractical or impossible to use (e.g. passive blood sugar sensor in body, transmitter outside the body) and are therefore seldom utilized. To solve this, many different wireless transmission protocols have been developed which are based on electromagnetic waves. The most prominent protocols are WiFi, NFC or Bluetooth. The network of the devices which are worn by a person on their body is called ”body area network” (BAN), or sometimes ”wireless body area network” (WBAN)[30]. Internet connections via WiFi are commonly used to transfer the collected data to a server for further storage and computation. WiFi is usually encrypted with Wi-Fi Protected Access II (WPA2), but can -since 2018- sometimes be encrypted with WPA3. Using a technology called TKIP (Temporal Key Integrity Protocol), unique encryption keys for each wireless client are created. Those encryption keys are constantly changed. By adding an integrity-checking feature, WPA also ensures that the keys have not been tampered with[5]. Near field communication (NFC) is a communication protocol based on RFID (radio frequency identification) that allows transmissions at low rate bit rates. NFC protocols establish a connection between two NFC-able devices within 4cm of each other. The transmitted data is dynamically encoded using a secret key. Most fitness wearables on the market use Bluetooth Low Energy (BLE), which is part of Bluetooth 4.0 and onwards, to connect to a nearby device with more computing power (mainly smartphones) than the wearable itself [24]. The RF transceiver (or physical layer) used for a Bluetooth connection operates in the unlicensed ISM band centered at 2.4 gigahertz (the same range of frequencies used by microwaves and Wi-Fi). The core system employs a frequency-hopping transceiver to combat interference and fading[14]. To establish a Bluetooth connection, one device needs to be scanning for inquiries, the other needs to actively send an inquiry to the specific device, which will then need to accept the connection. Since Bluetooth 2.1, the Bluetooth connection is being encrypted using a common shared ”Link Key”, using Secure Simple Pairing (SSP)[8]. Many companies offer services where the data of their devices leave the BAN and is transmitted over a router (local area network, LAN) into the wide area network (WAN) to the companies’ server (Fig. 2). Each network is prone to different attack vectors. Following the new ”General Data Protection Regulation” of the EU, which shows effects all around the globe, data is supposed to get more protection. For example, following GDPR Art. 32, all personal data must be encrypted during transmission [10]. Usually, data is encrypted using the Transport Layer Security protocol (TLS).

Data storage on servers

The General Data Protection Regulation of the EU obliges companies to report data breaches to authorities. However, they can not be held liable for a data loss. Users also have the option to see stored data. This is often not yet implemented in the intentions of the law, and companies that profit from the data try to use dark patterns to confuse the users. This can lead to conflicts with the law [12]. The users of a product are generally willing to accept everything that is needed to be able to use a product. Therefore a special treatment of health data under GDPR Art. 9 does not affect the use of health data, because the users will ”give explicit consent” to the (mis-)use of their data in order to be able to use the device. The data itself is often stored in cleartext on the companies servers. An option to avoid this is to use end-to-end encryption, so no one other than the person having the private key can read the data. Then the only viable option is that companies can offer their cloud-based backup solutions, however, if the private key is lost, the data can not be accessed anymore.


Wearable devices have enabled us to keep track of our health and general activity. By recording and reporting activities like sleep patterns, calorie intake, and steps taken, fitness tracking devices play an important role in educating and motivating people to live healthier [39]. For example, in the health company Cigna’s fitness tracker program, 80 % of asked participants stated that they were more motivated to manage their health. Of these participants, 43% were more likely to meet their fitness and health goals [27]. Wu et al. also points out that wearable devices can motivate individuals to form healthy habits[39]. Wu et al. point out that there are 3 major factors in helping habit formation using wearable devices:

  • Connection between people and their health: By focusing on overall wellness instead of particular health indicators, long term user engagement with the device can be formed.
  • Intelligent assistance: Tips on how to exercise and eat better are the number one information that users want from their devices. Therefore they should provide both convenience and utility.
  • Social Motivation: By making the user's goals and progress visible to a group or audience, users will be highly likely to be more committed to reaching their goal. Offering services to share the data of the user and allowing them to join communities with other users, who also share their data, can lead to higher motivation of the user.

This motivation is also not only short-lived like the fitness-studio-membership purchased every new-years. In a study by PatientsLikeMe, patients with multiple sclerosis were given Fitbit One tracking devices and instructions on using the trackers, as well as on sharing data to PatientsLikeMe’s online discussion platform. The motivation of the participants was reportedly continually high with an adherence rate of 87%. After the study, 83% of participants were so motivated and convinced of the benefits, that they reported continuing to use the device after the end of the study [9]. This leads us to the benefits of wearables in medical practice and research. As illustrated in Figure 3, wearables can offer a lot of insight into the human body via a multitude of sensors and a broad range of parameters: ”Heart rate can be measured with an oximeter built into a ring, muscle activity with an electromyographic sensor embedded into clothing, stress with an electrodermal sensor incorporated into a wristband, and physical activity or sleep patterns via an accelerometer in a watch. In addition, a female’s most fertile period can be identified with detailed body temperature tracking, while levels of mental attention can be monitored with a small number of non-gelled electroencephalogram (EEG) electrodes. Levels of social interaction (also known to affect general well-being) can be monitored using proximity detection to others with Bluetooth- or Wi-Fi-enabled devices.” [28] But even with just a smartphone, many specialized and costly devices can be replaced. According to Agu et al. [3], even smartphones released as early as 2012 can be used to substitute several classical medical devices and procedures, without the need for huge investments in money or time. Using the smartphone's microphone, diseases like asthma, chronic obstructive pulmonary disease (COPD) and cystic fibrosis can be diagnosed, analyzing various factors like the integration of airflow rate, replacing a portable spirometer, which can cost up to 4000$ [19, 20]. The smartphone's microphones can also be used in cough detection, which plays a big role in a wide range of ailments, from the common cold to allergies, bronchitis, asthma, pneumonia, tuberculosis and even lung cancer. This is achieved by recording coughs of a patient and analyzing the "explosive expiration phase" using multiple machine learning classifiers.

Very expensive Silhouette Wound Assessment Systems can be replaced by a smartphone as well. These devices are used to monitor the wound-development of (diabetic) patients’ (chronic) wounds, by imaging, measuring and documenting the wound, in order to help doctors get an overview of the effects of their treatment of the patient. As shown in a study by Wang et al. [37], by developing an app for diabetics to check the healing status of their wounds, wound assessment systems that can cost up to 6450$ can be replaced, using self-made images of the wound, which are then analyzed using the level set segmentation algorithm and color segmentation using k-means clustering. Various ailments of the respiratory tract, such as Allergic rhinitis can be classified and analyzed using audio recorded by the smartphone. Nan- Chen et al. [6] used an audio recognition machine learning framework to filter out unwanted and unnecessary noise from the recorded audio, which is then transferred to a server. On the server a Support Vector Machine (SVM) machine learning framework is then used to analyze and classify the audio, to detect ailments of the respiratory tract. Using the smartphones accelerometer or a video-feed recorded by the camera of the smartphone, even classic medical devices for heart rate detection, blood pressure and blood oxygen saturation like the ECG or EKG (up to 5000$) can be replaced by a much cheaper alternative that is already available to the patient. Using a technique called ”Photoplethysmography”, the heart rate of a patient can be measured by tiny, but recordable differences in the reflection of light off of certain areas of the body. Because more blood is pumped into their face [29], finger [21, 22] or earlobe, the corresponding body part is less reflective. This change in reflection can then be used to measure the person’s heartbeat, which is the cause of the measured change [3].

Even the personal diagnosis by a dermatologist can be replaced using images of suspicious lesions to detect melanoma, which is the most lethal type of skin cancer, causing over 75% of skin cancer related deaths[17]. By comparing patterns in images of suspicious lesions with a library of images of cancerous skin, Wadhawan et al. [35] could detect melanoma with a smartphone app. They used a widely used set of pattern-matching criteria, that are used by dermatologists for the same purpose called the ”7-point checklist”. In another study by Chen et al. [7] an ELM- based learning method was used to gather social information about a user from dynamic Bluetooth data. Using this in conjunction with data about the user’s physical activity and sleep duration, measured using a wearable wristband and a smartphone app, it is possible to identify the severity of symptoms of depression, drastically helping the user to find the right medication, which is very difficult without an intrusive 24-hour observation [23]. Sleep disorders like sleep apnea, where the patient ceases to breathe for a few seconds to a few minutes, can also quickly be diagnosed with a lightweight wearable measuring heart rate, breathing volume and snoring, measured through tissue vibration[16]. This increases sleep quality, as it can be done without the use of a heavy and costly polysomnograph in the comfort of the patient's home. As sleep apnoea is often only ”diagnosed” by a family member and not the patient itself, the use of wearable medical devices can lead to a higher detection rate, enabling the patient and his family to detect the ailment themselves. These examples clearly show the chances and benefits of using wearable medical devices:

  • Health Benefits: Wearable devices can significantly help in detecting ailments and in staying healthy by increasing motivation and improving a regular fitness regimen.
  • Monetary Benefits: Wearable medical devices are significantly cheaper than traditional devices while often attaining the same quality.
  • Time Benefits: By using wearable devices, the user saves the time to go to the doctor or a fitness center.

Combining these benefits and keeping in mind that wearable devices use already existing technology and the same protocols that are being used to transfer all kinds of personal data, like mobile or online payment, where the users bank information is transmitted the same way medical data is transmitted with wearable health devices, these benefits can clearly be regarded as a good and valuable improvement in the users life and health. However, even if the technology used in the transfer and storage of data generated by wearable devices is commonly used in other products and services, there is no guarantee that these technologies are safe.

Risks and Ethical Problems

Altering the body or its capabilities is a matter of controversy for some communities[36]. Should it be embraced or rejected? Is there a line to draw? Assistive technology was often quickly normalized in culture. Examples are glasses, vaccines, and prosthetics. People tend to draw a moral line where technology grants super-human possibilities. Enhancing the body with super-human abilities is a step into the direction of homo sapiens becoming techno sapiens. Whether this is something to embrace or reject is a question of ideology or religion. The techno logic view[11] sees the world as problems, which are to be solved by technology. In the transhumanistic view, the body is another problem which is valued as something weak and which needs to be overcome. This belief that the body has to be overcome is a means in some gnostic religions, where the ultimate goal is to become god again[38] (cf. ”homo deus” [15]). Societies usually consist of similarly-abled people. Exceptions are physically disabled people where these tools are used in medical therapy to bring their levels of ability to the ones of healthier people. Wearables can improve human faculties and therefore increase the range of body-derived power distributed in society. Wallach argues that this undermines social cohesion. Empathy works because I know that other humans’ experience is similar to mine. Our perception is based on our body and its faculties[32]. When our perception differs a lot, our interpersonal shared reality diverges. Therefore, this makes empathy and could isolate people. Not everyone wants to or can be part of these enhancements. The first consequences can be observed today, where especially older people do not have the finances, skills or even the will to use digital devices and services. Normalization can also create the problem that individuals are pressured to use these enhancements against their will. The German health insurer AOK grants a bonus to people who have good enough data in their fitness record (Apple Health or Google Fit)[4]. The US insurer Aetna reportedly collaborates with Apple to give users personalized health advice based on the data of the apple watch[2]. They also advertise with quasi-monetary benefits for using the app like gift cards from shops. For the user this makes not using fitness trackers more expensive, therefore discriminating against people that cannot afford themselves these fitness devices, or that don’t want to afford them because of ethical and privacy related considerations.

Being medical data, the transferred and stored data is the most intimate of all data. Because with wearable medical and fitness devices, data on individuals is generated, this data can cause ethical issues as it can be used against the user. These problems are general in nature. One problem is the recording of historical data, so it is possible to derive which activities an individual performed in the past, allowing to create a profile of the user and his activity. Our society is built upon humanistic values such as individualism. Individualism needs controlled data access to keep up information asymmetry. Bad access control can create transparency. Viewed from the perspective of game theory, transparency removes information asymmetry which weakens the individual. Offering such tools is therefore questionable because the individual is tricked into believing that it can keep up the information asymmetry, while in reality the information asymmetry is weakened. As data security cannot be guaranteed, creating, transmitting and storing data is connected to some risk, where companies try to manipulate the perception of this risk. Companies are also not the only actors, as government executives are also interested to remove one-sided information asymmetry from people.

No system is completely secure. Sometimes new vulnerabilities are found for protocols that were considered secure. In 2016 a vulnerability in the WPA2 protocol was published, which allowed attackers to listen to the communication sent via WiFi [25]. This could be solved by updating the patches of the manufacturers of the devices. Another example of a system that was considered secure is the Heartbleed-bug in the software OpenSSL. There is no easy way for consumers to see if their devices are properly updated and secured against known attacks.

With the data stored in databases of various corporations, the user does not have direct control over his private data. When the data is stored on the servers in cleartext this bears the risks that the data is accessed by third parties.

In most cases, there is no technical need to transport the data to other servers. Companies are huge beneficiaries when devices are registered to a personalized online account. By analyzing the usage, data companies can get cheap user statistics on how the product is used and by whom. Traditionally, costly user studies had to be performed to obtain that data. The company therefore saves a lot of money by not having to conduct these user studies anymore. Offering software-as-a-service allows companies staying competitive because the software can be changed rapidly and a lot of metrics can be collected. This change from local to required online delivered software should be seen critically from the user perspective because many devices only work with an internet-connected account. The data is therefore personalized available to the companies. When parts of the infrastructure break, the devices are no longer usable, which can lead to major problems. In areas with no (good) infrastructure, these devices cannot be used at all, leading to a geographically based form of discrimination. Companies can also often ban single users from using their accounts without legal reasons for that ban, therefore excluding specific individuals from their benefits.

The risks that the generated data is maliciously used is much higher when the data is transported and stored on external servers as well. As we have seen, normalization effects can pressure individuals to use certain technology. In some cases a product has no alternative, so users can only decide between using a product or service with unethical data usage, or completely abstaining from it and its benefits. Companies know and use this pressure to keep people using their systems. Companies push non-optional and unethical data collection to the edge of society’s acceptable limits, to keep the normalization effect intact.

Another risk of a data connection to the WAN is that the data might be tangled with, to manipulate or harm the user. The user or his or her doctor might change therapy based on false data, which can lead to extremely negative consequences for the user. In extreme cases, this could even lead to the death of the user through the wrong medication. To prevent the data from leaving the LAN, it would be possible to store the data locally. There are no open source platforms or protocols to self-host central health repositories, however, a simple raw data export option in human or machine-readable or both format (CSV, JSON, XML, etc. ) should be included in the used software to collect the data independently. Based on these formats a visualization can be created with simple tools like spreadsheet programs.

Because many devices actively emit electromagnetic signals, the position tracking of users and their behavior is possible[34]. People usually wear an electromagnetic signal sending smartphone anyways, so additional devices don’t do much additional harm if they are not significantly easier to track.


In conclusion, we can see that wearable medical and fitness devices provide a lot of benefits, but also raise three major ethical problems:

  • Security of personal data in transit and storage: To compute, store and compare the user's medical and fitness data, it needs to be sent to servers via WiFi. This leads to a vulnerability in privacy, as the data can be intercepted or tampered with both in transit as well as in storage through security-gaps. This is a problem that exists with all digital data and is a concern in ethics and society as a whole.
  • Handling of personal data: As the companies that sell wearable medical and fitness devices often hold the rights to the data created by them, their intent and moral handling of it is an area of ethical concern. Is the company using the data for something the user might not want? Is it giving access to third parties to exploit their users?
  • Normalization effects: When technology becomes adopted by many people this can create societal pressure to also use products or services. This pressure can lead to other ethical problems, like discrimination, monopolies, etc.

These problems tie into a broader discussion of privacy and moral handling of data in an ever-digitizing world. The extreme privacy of the generated medical data and the lack of regulation in the field of wearable medical and fitness devices leads to an increased focus on these issues. As these issues are however not specific to wearable medical and fitness devices, but only more severe in this case, it can be said that they do provide an increase in life quality for their users, so long as they are informed about the ethical issues that follow the use of these devices. As transhumanistic ideas are becoming more and more real in the form of these devices, society needs to find answers to the questions on how these devices should or should not be regulated.

Other/Future ethical considerations

In this paper, we have shown the benefits and ethical risks of using wearable medical and fitness devices. However, this field is larger than the scope of this paper, so some issues regarding wearable medical and fitness devices require more research. Also, as technology is progressing at an ever-faster rate, with the use of Artificial Intelligence, robots and an ever progressing digitization, new ethical issues might occur soon. These issues might be:

  • The use of AI in medicine and healthcare
  • Legal issues
  • Regulatory issues in controlling wearable
  • medical and fitness devices to ensure consistent quality and therefore reliability
  • Mental health effects of using wearable medical and fitness devices (e.g. worsening of conditions of hypochondriac people)


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Moodassist app icon

A month is usually quite a short time for the development of a whole app. The vision I had was quite small, so I figured, that this a challenge to pursue. The initial idea started with an app that I am using myself. A mood tracker that reminds me to enter my mood every day. After a couple of days or weeks, I can see trends in the recordings. Our mind may trick us into believing that everything is wrong or right in our life just because we had a bad respective good day. Saving the data helps to bring some more objective insights. The problem with the app I was using is, that the app is missing one critical feature. I want to be able to export the data to correlate it with other metrics, for example, my body weight. The idea behind measuring stuff about yourself is called „quantified self“. Thinking long term, this is another data source for a personal ai assistant. In an ideal world, we would be only using open source software, so that I would be able to add this export option to the software by myself. Unfortunately, in order to solve this problem, I have to write this app myself. I just had learned the Swift programming language, wrote my first microservice and developed for the Apple Watch. This was a chance to utilize my knowledge. While I could have used this project to explore even more technology, I stuck to the areas which I was familiar with. A project like this has enough learning opportunities to encounter. Coming from the indie game development scene, a mantra was often repeated: Releasing is the most important feature. People who followed my work may know that I never released my game Caveland in the final form. This time I took this mantra to heart and focused on delivering.

One app? No, two apps!

Initially, I started with just the iPhone app. With the launch watchOS 6 a new app store for watch app launched. I saw an emerging market opportunity with the introduction of said store. Therefore, I decided to complete the standalone watch app first. I used a Watch series 3 for testing. I previously worked with a model of series 4. You could often feel that computing power is a limiting factor. Unfortunately I have no benchmark data. With less computing power, programming becomes more unforgiving as non-performant code easily becomes noticeable. The first version I handed to Apple had some huge performance problems, which I only discovered the moment I showcased the app to someone. This performance issue made me realize that a lot of wearable and other small devices suffer from limited energy availability. There is so much stuff you can not do with wearables because as a consumer you want all-day battery life. This is an interesting fact when looking at the rumors for Apple’s augmented reality glasses. It is not possible to see the App Store through the simulator, which is included in the development platform Xcode. Only once I got hands on the hardware I could see the new store. During development, I found a lot of outdated code on the web. It seems that developer interest in the Apple Watch has plunged.

So now I made the Watch app. I planned to also implement a server or, how it is marketed nowadays, as a „cloud“ feature. What is the use case of the cloud feature? The way the cloud support is implemented is mostly a proof of concept of the philosophy I envision before. A privacy and secure way to connect personal data with other services.

When you already have a data export feature, importing is not a too far fetched idea. To make this feature more meaningful I also needed support for another platform. Therefore, I finished both apps together so that you can get both in a bundle. The iOS app was halfway done anyway.

In my mind, I envisioned a whole platform with a web client and a Mac app. I understand that your mood data is sensitive information. Therefore I designed a system after the principle of privacy by design, where it can be guaranteed that no one can use the data against you. The solution is easy. The access to your data is not connected with an e-mail address, phone number or username. You get a randomly generated code. You can share it and if somehow someone gets to know your code and should not, you can just move to a new randomly generated code. The disadvantage from a business point of view is that there is no way to send you e-mails for advertising.

When you develop a product, the hardest part is actually finishing it. Dozens of projects fail because the creators lose interest or one feature after another is added. Presenting your work can be scary. Upon completing the project, you will find something which needs to be changed, you have always ignored, or is unexpectedly not done. I am glad it is done.

You can get the app in the App Store.

Technical wisdom for developers

Some notes for people, who are interested in building stuff themselves. Properly deploying took the same amount of time as developing the first version of the server software. I am a bit disappointed by the state of python server development. I used uwsgi in combination with Flask. Uswsgi is by default using outdated python 2. As reconfiguring did not work, it was easier to stick to python 2. I observed some response time spike (2s) after some idle time during the night. My hosting provider says it is not them and puts the blame on my software, which I have to put on uwsgi or python. Next time, I like looking into some other language. I like Swift a lot. Swift for servers currently only runs on ubuntu.

connected devices pointing to a brain

„You should take a break from work now and eat something. The recipe you wanted is on the display.“ You step up and walk into the kitchen. After having prepared the meal and eaten you step into the room again. „I advice you to meditate now for 20 minutes.“ You take your meditation pillow and sit down. After 20 minutes a sound reminds you to „come back“. „Liz wants to have a beer with you. Should I suggest to meet at 9 at the pub?“. „Yes“, you answer.

The voice is not a real person. It is the speech interface for his digital assistant. The suggestions come from observing his behavior, his calendar, his body, message, habits, and what he instructed. This yet fiction but becoming more and more real.

The world is getting more complex every day. To help us figure out what is important and filter the signals from noise artificial intelligence can be utilized. The chance in these ai systems are to free us from mental energy-draining tasks and bring order into chaos. More and more time is spent on mental tasks managing information, like using a computer (looking things up, analyzing data, configuring systems to get us more insights). Work is increasingly bodyless and happening in human designed environments. A personal AI assistant (paia) can be the assistant for everyone, and reconnect us with our body. Smart home and paia are inherently connected in the concept of ubiquitous computing. I already analyzed in a previous blog post (German) how the internet changed its „presence“ from gates to the cyberspace to a virtual space-enriching layer of reality. One component of paia is the speech interface. Speech interfaces accelerate the development of paia, as information transmitted over the medium of speech must be condensed to fit into spoken language. A paia has access to personal information. This transforms the ai to a personal assistant. It can also be accessed by any network-connected device which has a display. Paia are already used by millions of people and use will grow even more. 12% of the people in Germany already have a smart speaker at home¹ and 50% are interested in these devices². Every smart speaker has some form of personal AI assistant (paia). Operating systems like macOS and Windows 10 now come with a speech assistant.

How the internals of such a system work or how it is exactly operated, will not be covered here. We will now look at the prerequisites to build and operate such systems. To operate a paia needs data about you. The data can come from the software you use or data from your smart home. To provide this data to the paia we need

  1. data collecting systems which we can trust and
  2. convenient data interfaces to create a data flow from the source to the assistant. More data is generated with more and more sensors being installed everywhere (smart home).

The crucial part of the first point is trust. The concerns in these systems are that our privacy should be respected and maintained. But can we trust these systems, when they only work opaquely and sending the data to foreign servers? It does not help the cause of trust that this emerging field is currently controlled by the big tech-feudalistic companies like Amazon or Apple.

To summarize some risks:

  • Government access (surveillance)
  • Data gathering companies
  • Other malicious attackers
  • Intransparent software
  • Data leaks

I see a lack of privacy-aware solutions to collect data on yourself. This is something companies, independent developers, citizens or governments can build. Trust in others is not needed if we are in control. Then we only need to trust in ourselves and the inner working of the system.

Furthermore, we, as users, need to be able to trust the judgment of the AI. How can we do this? We need transparency and control. The AI needs to have configurable components or - sticking to the image of a virtual person- we need to be able to teach the obedient AI (see this blog post to see, how this sometimes not the case). The question of who controls our tech is a political one. In the instance of the Amazon Echo system, user control is partially derived by installing „skills“. Skills are like apps for your voice assistant. The problem with that is, that the skill store is another company controlled app store. These app or skill stores enable tech-feudalism. How a company controlled app store can be a problem could just be observed in the case where apple removed the Hong Kong demonstration app from the app store.

The second premise of a paia is a technical one. There needs to be some protocol to create a dataflow. I present a solution utilizing privacy by design for user-generated data in an app.



Die Bedeutung von Raumfahrt für unsere Kosmologie

Black Hole

Allgegenwärtig, nicht infrage gestellt: Der Raum. Doch in den letzten hunderten Jahren hat sich unsere Vorstellung vom Raum stark geändert. Dieser Veränderungsprozess ist noch nicht abgeschlossen, denn neue Technologien eröffnen uns Türen zu unbekannten Räumen. Im mittelalterlichen, christlichen Denken gab es einen Dualismus in der Kosmologie: Es gibt einen physikalischen Raum und einen Seelenraum. Der physikalische Raum ist der Bereich der Menschen. Je weiter man gen Himmel unterwegs war, desto mehr veränderte sich der Raum zu einem nichtphysikalischen, göttlichen Raum. Umgekehrt findet sich im Zentrum des Universums die Hölle. Die Stärke des Christentums war die Parallelität der dualistischen Kosmologie aus physikalischen und Seelenraum gepaart mit dem Dualismus aus Körperlichkeit und Seelen. Die Fortschritte in der Physik und die Entwicklung neue Werkzeuge wie bessere Teleskope konnte diese Kosmologie verändern. Wir wissen, dass der Raum euklidisch ist und sich in alle Richtungen ausdehnt. Vermutlich ist er sogar unendlich in seiner Ausdehnung. Der Raum ist jetzt durchweg physikalisch und eine Verortung des Metaphysischen ist nicht mehr möglich. Wo früher das himmlische Seelenreich verortet wurde, reisen heutzutage Raumsonden und schicken uns Bilder zur Erde. Der mittelalterliche Kosmos ist eine Theorie aus menschlicher Erfahrung. Ich würde daher behaupten, dass das christliche dualistische Weltbild intuitiver als das moderne physikalische ist, wobei diese Bewertung autobiographisch geprägt ist. Die physikalische, monistische Kosmologie ist inhärent nicht die plausiblere, denn beide Kosmologien beinhalten menschlich nicht erfahrbaren Raum. Die Bedeutung der Raumfahrt ist daher für die Akzeptanz unsere Kosmologie nicht zu unterschätzen. Die Bilder von Sternen, Planeten und neuerdings eines schwarzen Lochs machen die moderne Kosmologie menschlich erfahrbar und beweisen die Korrektheit. Visualisierungen der Entstehung des Universums zeigen oft eine Kugel, die seit dem Urknall größer wurde. So glaubte ich lange Zeit, dass der Raum kugelförmig begrenzt ist. In der Tat ist dies aber nur das beobachtbare Universum, also der Bereich des Universum, von dem wir Informationen erhalten. Eine Kugel hat ein Zentrum. Im beobachtbaren kugelförmigen Universum liegt dieses Zentrum immer im Auge des Betrachters. Alles, was hinter dem Ereignishorizont liegt, kann uns nicht erreichen. Dies eröffnet uns neue Fragen: Kann etwas existieren, wenn es nicht Teil unseres subjektiven Universum ist? Ist Existenz subjektiv?



Der Film Tron (1982) beschreibt eine Vision des Cyberspace: Ein virtueller Raum, in dem sich Computerprogramme als geometrische Objekte wiederfinden. In diesem Raum übertragen sich die Protagonisten des Films. Der hier präsentierte Cyberspace ist ein euklidischer, nichtphysikalischer Raum. Die Ästhetik der Welt von Tron ist die der frühen Computergrafik. Es gibt nur einfarbige Flächen, keine Texturen, und Formen werden durch Kanten präsentiert. Im gleichen Jahr wird diese Vision eines virtuellen Raumes zum ersten mal durch den Autor William Gibson im Roman Neuromancer benannt: Cyberspace. Zu dieser Zeit war noch nicht das Internet erfunden und die Erfahrung einer virtuellen Welt für die meisten Menschen noch sehr weit weg, was möglicherweise ein Grund für den Flop des Films war. Der Film war seiner Zeit voraus. Durch technologischen Fortschritt wurde diese Vision für immer mehr Menschen erfahrbar. Kernelement im Cyberspace ist die Verortung eines Avatares, also eines repräsentativen Körpers, in die Welten von Onlinespielen oder sozialen Plattformen wie z.B. Avatar-basierte Chaträume. Virtuelle Gesellschaften mit vielen Teilnehmern finden sich in massive multiplayer online games (MMOGs). In den ersten Jahren fanden MMOGs großen Anklang in der Öffentlichkeit (z.B. World of Warcraft, Second Life). Vorläufer dieser Welten waren die MUDs (multi-user dungeons). Heutzutage kennen selbst Technologie-affine Menschen dies nicht mehr. MUDs sind textbasierte online-Welten, in denen sich viele Leute zum Spielen oder Chatten treffen. MUDs waren spektakulär, da sie für viele Menschen die Teilnahme an virtuellen Welten ermöglichten. Ein besondere Bedeutung haben Rollen, in denen die User schlüpfen, die sich von den Rollen, die wir im RL (real life, das reale Leben) sonst einnehmen unterscheiden. Für ein Alter Ego ist Anonymität Voraussetzung, die der künstlich erzeugte Avatar erlaubt. Die Anonymität gibt einem die Freiheit sich neu auszuprobieren. Einen umfassenden Cyberspace gibt es eigentlich gar nicht, vielmehr existieren eine Vielzahl von virtuellen Räumen. Manchmal meint der Begriff des Cyberspace die Gesamtheit des Internets und der digitalen Repräsentation. Unterscheidungen zwischen Protokollen wie z.B. den Unterschied zwischen Internet und Web bereitet vielen Menschen Schwierigkeiten. Schließlich benutzt man ein Endgerät und kann dann eine „Computerwelt“ betreten. Physikalisch befindet man sich an einem Ort und interagiert mit einem Gerät. Es ist also naheliegend das der Cyberspace als etwas singuläres verstanden wird. Für die meisten Menschen ist das Web als eine Form des Cyberspace real erfahrbar. Es ist fraglich, ob beim Web der Raumbegriff passend ist, denn der im üblichen Sprachverständnis bezeichnete Raum ist euklidisch. Im Gegensatz zum euklidischen Raum gibt es den weiter gefassten mathematischen Raumbegriff, der nur eine mit einer Struktur versehen Menge bezeichnet. Diese allgemeinere Definition ist passender, denn im Web navigiert man ohne Avatar, also ohne virtuellen Körper, zwischen den Websites. Der Ort an dem man sich „befindet“, ist die betrachtete Seite. Im Prinzip verhält es sich beim Surfen im Internet wie beim Stöbern in einer Bibliothek, wobei nur die geistige Tätigkeit des Lesers gemeint ist. In der Wahrnehmung des Nutzers gibt es dennoch eine Navigation, denn Browser zeigen immer nur eine Website an und Hyperlinks eröffnen dem Nutzer Pfade, die er beschreiten kann. Technisch gesehen begibt sich der Nutzer nicht zu einer Website, sondern die Seite kommt zum Betrachter, nachdem man beim Server angefragt hat. Die Form der geistigen Navigation entlang der Pfade macht das Erlebnis zu einer körperlosen, metaphysischen Navigation in einem Raum.

Cyberspace visualisierung

Die Verknüpfung zwischen dem Web und einem euklidisch erfahrbaren Cyberspace wurde immer wieder versucht zu etablieren. Aktuell arbeitet Mozilla mit der JavaScript-Bibliothek A-Frame an dieser Vision. Diese Bibliothek erlaubt Entwicklern virtuelle Realität einfach den Nutzern über den Browser zur Verfügung zu stellen. Die Einbettung des Webs in einen euklidischen Raum transformiert das Web von einer metaphysischen Erfahrung hin zu einem virtuellen Raum. Dieser Raum ist nun näher an unserer üblichen, natürlichen Erfahrung des Raumes. Dadurch wird die Erfahrung körperlicher und weniger transzendental. Nachdem die physikalische Kosmologie den Seelenraum entfernt hat, eröffnete sich durch das Tor zum Cyberspace wieder die Möglichkeit das Transzendentale an die Realität anzuknüpfen. In der gnostischen Lehre (Gnosis, Erkenntnis) geht man davon aus, dass die Materie und unsere Körperlichkeit überwunden werden muss, um die Seele zum Göttlichen, Guten zu überführen. Die Tech-Gnostiker ersuchen dies mit Technologie. Sind sind daher meistens Transhumanisten, aber nicht jeder Transhumanist muss Gnostiker sein. Viele Internet- und Tech-Pioniere verfolgten gnostische Ideale, denn der Cyberspace verspricht die Überwindung der Körperlichkeit. In dieser Überhöhung des Cyberspaces finden sich Parallelen zur mittelalterlichen dualistischen Kosmologie. Der Cyberspace ist ein körperloser Raum, der aber dennoch über unseren Raum zu erreichen ist. Zugang sind Peripheriegeräte wie Bildschirme, Mikrofone, Maus, Tastatur. Endstadium des Transhumanismus ist die Verschmelzung über Neuroimplantate mit Upload unseres Geistes. Aufgrund des Verhalten des Körpers diese Implantate entweder aufzulösen oder abzukoppeln, ist allerdings in den nächsten Jahren nicht mit der Umsetzung zu rechnen. In der Tech-Gnostik wird durch den Upload der Mensch unsterblich und göttlich (theosis). Gesellschaftlich werden technische Möglichkeiten zur Steigerung menschlicher Fähigkeiten jenseits der normativen Fähigkeiten erstmals abgelehnt. Der Ausgleich von Schwächen relativ zur Norm ist gesellschaftlich hingegen akzeptiert. Auch zum Transhumanismus finden sich daher oft eher ablehnende Stimmen. Tatsächlich sind die Informationen im Cyberspace aber mittelbar mit der Realität verknüpft. Es sind bits, die irgendwo auf einem Server abgespeichert oder erzeugt wurden, der sich auf diesem Planeten befindet. Wir müssen also feststellen, dass Cyberspace sich nicht ganz vom physikalischen loslösen lässt. Der Glaube an den Tech-Gnostizismus funktioniert also nur über eine Ablehnung des monistischen Kosmos indem dem Cyberspace eine Metaphysik zugesprochen wird. Das Interesse an der Vision vom Cyberspace hat nachgelassen, da das Thema nicht mehr neu ist und sich die Nutzung und Wahrnehmung des Internets geändert hat. Dazu kommen wir jetzt.

„Wann kommst du wieder on?“

Vaporwave Aesthetic

Dieser Satz war am Ende der 00er Jahre ganz üblich. Heute ausgesprochen würde er irritieren. Schließlich sind wir doch immer online. Der Internetzugang wurde dank Laptops, WiFi und Smartphones mobil. Da wir immer online sind, gehen wir nicht mehr „ins Internet hinein“. Dies änderte das Nutzungsverhalten des Internet nutzenden Mainstreams. Zugleich wurden soziale Netzwerke populärer. Da das Internet nun eine Erweiterung unserer Realität ist, sinkt das Interesse an einem anonymen Alter Ego. Wir präsentieren und vermarkten uns unter unserem Klarnamen: Facebook, Instagram, LinkedIn. Sensoren in Smartphones verstärken weiter die Verbindung von Internet und der Realität. Spiele wie Pokemon Go oder der Vorläufer Ingress, aber auch Dienste wie Yelp und google maps erweitern den Raum. Dadurch wird das Internet nicht mehr als ein mystischer Ort verstanden, sonder als eine unsichtbare Datenwolke, die den Raum erweitern. Mit dem zukünftigem Einsatz der Funktechnologie 5G wird dieser Trend nur weiter fortgesetzt werden. Das Bild des Cyberspaces ist wieder geerdet. Diese Ästhetik des revolutionären Raumes wird jetzt in nostalgischer Funktion wieder aufgegriffen. Dreißig Jahre später zitiert man diese Anfänge in der Computergraphik im Genre des „Vaporwave“. Die Vektordisplays und texturlosen Formen sind ein herausragende Artefakte dieser Zeit, die seit vielen Jahren durch hochaufgelöste Pixeldisplays mit volltexturierten Oberflächen ersetzt wurden. Deshalb dienen sie als Schlüssel, der die Nostalgie zu dieser Zeit erweckt. Als Zitat zeigen sie, dass der Cyberspace inzwischen mehr Vergangenheitsgewandt als Science-Fiction geworden ist.

Die Unmöglichkeit einer Matrix

Viele Menschen lassen sich über die Fortschritte in der Computergraphik über die Machbarkeit einer Virtualisierung der Realität täuschen. Die Simulationshypothese, nach der das Universum nur eine Simulation sein soll, erfreut sich inzwischen einer sehr großer Beliebtheit. Doch das Universum ist nicht nur ein optisches Phänomen. Die Realität hat viele Ebenen, die nicht Teil unserer menschlichen Erfahrung sind. Um sie zu zu observieren braucht es Werkzeuge wie z.B. Mikroskope. Diese jenseits der Alltäglichkeit liegenden Ebenen können nicht einfach „wegmodelliert“ werden. Eine nur auf menschlichen Erfahrungen moderierte Matrix ist eine deutlich reduzierte Version der Realität. Ein Atomreaktor wird in einer Computergraphikrealität niemals arbeiten können, sofern er nicht durch ein reduzierendes Modell beschrieben wird.

Der Cyberspace ist nicht lebendig

CC-BY Aram Bartholl CC-BY Adam Bartholl, Objekte aus dem Level de_dust aus Couterstrike in der Realität

Viele virtuellen Räume wirken steril. Von Spieleentwicklern entworfene Räume sollen Geschichten erzählen, die aber nur fiktional sind. Sozial genutzte virtuelle Räume enthalten weniger fiktionale Geschichten, denn die Nutzer selber bewohnen den Raum und machen ihn lebendig. Nur wenige solcher Räume erlauben die Veränderung durch die Nutzer und die Veränderungsmöglichkeiten sind auch sehr begrenzt. Wenn man einen alten Abstellraum oder Dachboden betritt, ist dies eine ganz besondere Erfahrung. Hier liegen Gegenstände, vielleicht alte Bücher, Schallplatten, Kleider. Alle diese Gegenstände erzählen Geschichten. Jeder von uns produziert kontinuierlich Geschichten und verändert den Raum um sich herum. Der virtuelle Raum bleibt weitestgehend steril. Der meistbesuchte Ort der Welt ist vermutlich nicht das Times Square, sondern de_dust. Ich kann de_dust jederzeit betreten, in dem ich Counter Strike starte und mich über meinen Avatar in die virtuelle Welt begebe. Doch dabei gruselt es mich etwas. Millionen Menschen liefen hier an diesem sterilen Ort herum und dennoch ist keine Spur davon vorzufinden. Göttlich und unsterblich sieht anders aus.

Zum Weiterlesen

Margaret Wertheim: Die Himmelstüre zum Cyberspace - von Dante zum Internet

Englische Originalausgabe: The Pearly Gates of Cyberspace: A History of Space from Dante to the Internet. 1999. Dt.: Die Himmelstür zum Cyberspace : eine Geschichte des Raumes von Dante zum Internet. Ammann, Zürich 2000, ISBN 3-250-10417-5.

Amazon sold tens of millions of Amazon Echo devices . I also bought one, to get a cheap speaker and to test the new promise of a natural language interface to your house.

Most people know the "Echo" by name of "Alexa". Alexa is the default voice activation command. I changed these default configurations to set it that the Echo should be listening whenever I call "computer". One time I was angry, and when I am angry and alone, I sometimes shout to lower my internal levels of frustration. I interacted with my echo. It was saying more than I wanted so I used a German vulgar version of "Computer, shut up!". The device answered with: "This is not really nice". This reaction was angering me even more. The device was indirectly blaming me. The answer was an attempt to teach me to give it dignity. When people swear at something it is because they feel powerless and swearing is a way to get back power. The user of technology should always be in control. I don't want that a rule-based system has dignity or takes away my power. That is why I called it "computer" and not "Alexa". If you call it "Alexa" it changes the psychology of the interaction. By using a name, you humanize it and give it dignity. If you talk to a virtual person then the response to a swearing makes sense and probably feels right.

This incident showed me another thing. Although you can change the "name" to activate it, the concept behind it does not change. A US company is forcing their values into my home. This is why we need Open Source or fully configurable AI.