But what they describe, collecting data 24/7 and analyzing it with psychological methods - is allready beeing done. It is just not done out of medical or scientific reasons ... and thats the problem with me.

So it was actually a scary read to me. I mean, there is no doubt about, that you get much better results, if you have more and better data.

And under certain condition I might be willing to share all my data for a science project or my psychotherapeut. (if I would counsel one)

And the research will surely benefit the latter as well - but I believe, most of the use cases will be for - advertisement on the one hand and population surveilance/control on the other hand.

I live in the former DDR. And the old ones still tell how horrible the spying of the Stasi was. Yet they are all fine (or don't understand) how much more is known about them today. There is a difference, sure, you don't go to prison today, if you criticize the government. But if the system goes into dark mode again - and there are some signs that this might happen - then any opposition to it, won't stand any chance. And then hello to totalitarian dystopie.