> So everyone you interact with knows where you work, how much you earn, what you own, where's your house, what you buy, what groups you belong to... and they can keep tracking you forever if you tell them who you are just once.
Granted public blockchain is a lot more discoverable, but a lot of this already is public. Property ownership is public (at least in the US), credit cards sell your data, facebook knows which groups you belong to, etc.
Blockchain is a solution in search of a problem. Conventional technologies can do the same thing with far less overhead. The issue is that they're 'conventional' and not 'new/shiny/sexy'.
New doesn't always mean better, and it's often objectively and demonstrably worse than what preceded it.
I'm not defending blockchain, just pointing out that part of the example wasn't really a good one. Property ownership being something that's already completely public.
I have a public map overlay on my phone that gives me deed information for (AFAIK) every parcel I can see in the USA.
Granted public blockchain is a lot more discoverable, but a lot of this already is public. Property ownership is public (at least in the US), credit cards sell your data, facebook knows which groups you belong to, etc.