I'm always told that one of the main benefits of a blockchain is that it enforces trust, or something to that extent. But enforcing trust in databases is not an open problem. Databases successfully store data. Therefore blockchains seem like a 'solution' to a problem that doesn't exist.
I understand there are some interesting applications of VR/AR that may catch on, such as teaching medical students or engineers about complex systems, but the broad commercial appeal of VR seems to have been vastly overhyped. Have industry players accepted this or would they disagree?
