[moregrist]

Replace “AI” with “fusion” and you immediately see the problem: there’s no concept of timescale or cost.

And with fusion, we already have a working prototype (the Sun). And if we could just scale our tech up enough, maybe we’d have usable fusion.

[dpatterbee]

Heck, replace "AI" with almost any noun and you can close your eyes to any and all criticism!

[gjm11]

Only to criticism of the form "X can never ...", and some such criticism richly deserves to be ignored.

(Sometimes that sort of criticism is spot on. If someone says they've got a brilliant new design for a perpetual motion machine, go ahead and tell them it'll never work. But in the general case it's overconfident.)