If proof of work is the "payment" to prove that you're human, many AI startups will outbid poor people living third world countries. They will even outbid some Americans.
Yes, those AI startups can also buy cheap Android phones at scale, but it's a bit harder because they'll pay for stuff that their bots have no use for (a screen, a battery, a 5G radio, software, branding, distribution, customer support etc).
As I see it, living requires money. If we have people on this planet that are too poor to digitally prove that they're alive, then we need to figure out a way to distribute the Earth's wealth more equally in general, rather than to require hardware attestation, which seems to be worse on essentially every metric, including inequality.
> If proof of work is the "payment" to prove that you're human, many AI startups will outbid poor people living third world countries. They will even outbid some Americans.
The difference is that if you're human you can create an account and then carry on using it for decades, whereas if you're an aggressive scraper bot or spammer then you get banned and have to buy new accounts over and over.