Phone, then ID-based verification is a stop gap, but IDV services will have to spin up to support the mass volume of verifying all humans.
[1] I kind of want to do this from an innocent / artistic perspective myself. Perhaps a bot that responds with a bunch of rhetorical questions or onomatopoeia. Then I'd scale it to the point people start noticing and feeling weirded out by it. "Is this the new Gen Alpha lingo?" Alas, I have too many other AI projects.