approaching the main station

Went to an actual talk in Mitte with real people. The talk was very interesting. Big data used to monitor individual health in the US. The scale of the projects is quite astounding. Computation and data storage is done in one of the cloud providers. At the moment this is not possible in Germany due to data protection issues. I must admit I am suspicious of the personalised tracking. It also occurred to me that when there are huge health inequalities aren't there lower hanging fruit that would help improve the population's health without having to give up personal data?