Abstract
Mass disclosure of technologies makes it very easy for individuals to collect data about their body, life, and behavior is the fuel of an increasingly popular phenomenon, which we collectively refer to as Quantified Self. Thanks to cheap and omnipresent technology, self-measurement, which is its true essence, can be performed almost without effort on the part of the user, but the image we thus obtain can be considerably distorted.
The paper will try to show, through practical examples, a critical reflection of measuring fitness bracelets with the help of concrete examples, what is lost in translation when a person prefers numerical values displayed by a display on the wrist instead of listening to one's own body. When should we be careful with our trust in these devices and their associated applications, and why is it useful to question what self-measuring tools present to us as an unbiased description of our lives.
The allure of numerical representation of events and states can easily be a source of false control for individuals in increasingly complex everyday life and successfully mask the loss of the complexity of real life, which cannot be expressed by any numerical value or pictogram.