What would constitute a "proof of citizenship"? Would a passport be enough, for example?

ANDNOSPACESTHENPLEASE

Outside of coding/non-physical areas, the impact can be quite muted. I haven't seen much impact on surgical procedures, for example (but maybe others have?).

Feeding scenarios is not without challenges as some things, for example, smell, would be "pre-processed" by humans before fed into the AI, I think.

What is an example there?