To be fair, some of that might be based on extrapolation, eg people thinking "If GPT 3.5 / GPT 4 can do this today, what will GPT 17 be able to do in 10 years?"

To be fair, some of that might be based on extrapolation, eg people thinking "If GPT 3.5 / GPT 4 can do this today, what will GPT 17 be able to do in 10 years?" and that kind of thing. And that's an interesting question to think about, IMO.