Nobody is claiming it's the solution to everything. The lesson from history (and not obvious from first principles) is that it's hard to predict what technolog

Nobody is claiming it's the solution to everything. The lesson from history (and not obvious from first principles) is that it's hard to predict what technology will be good for. You have to invent it first, and let people try to use it to solve whatever problems they have in order to figure that out. Cheapness & convenience often enables new uses -- for instance, personal computers turned out to have a lot of uses that mainframe computers didn't because they were too expensive and inconvenient for regular people to fool around with. "I can't imagine a good use for this tech, therefore it shouldn't be invented" is a perennially wrong argument.