Breaking the data monopolies sounds interesting. You think the forces will eventually even out a little more with the technology of AI? Let's hear more about that.

Right now we, the users, exchange all of our data for a "free" service. We get to use a platform and the company running that platform gets all of our data in exchange and uses this for analysing its users. Data is valuable and who controls it makes a lot of money. All those centralised platforms tend to acquire a lot of data, a lot of money and therefore a lot of power.
The domain I'm working on allows users to provide their data for training of machine-learning models, but while keeping their privacy. If you think this further along this line and add what blockchain technology can bring to the table, we could imagine a future where the people can not only chose which kind of personal data they are contributing (ideally while still maintaining their privacy), but also get financially compensated for contributing data. This would be a paradigm shift, since the big tech companies have to share the profits, they make from their users' data.