The database problem the GP describes is actively being worked on and is extremely difficult. There's Etebase, which is a product that's attempting to provide s

The database problem the GP describes is actively being worked on and is extremely difficult. There's Etebase, which is a product that's attempting to provide some of what they hope for, but without very modern (and usually very slow) encryption techniques it's not workable for most use cases. For example, on Etebase it's impossible to return rows in order from lowest to highest without using complicated hacks involving client-side indices. (In general, the field of doing operations on encrypted data is called homomorphic encryption.) ZK-tech, while super cool, is not super related IMO, but it is seem strange that the GP doesn't seem to consider it a worthwhile side effect of cryptocurrency hype.