alt Hacker News"40 hours" in his context here is actually a work day, so 7-8hrs.
He says "40 hours" because he feels like he's managed to do 40 hours worth of work in this time, but then has to spend another "40 hours" (actually: 1 day) just going around kicking tyres.
Obviously the implication is that it's a net gain of some kind, but he's unsure if he caught everything.
(sorry to reiterate the GP, but I feel like you missed the important nuance that it's not a real 40 hours of time).
Replies
Wow, just wow. This is the first time I've encountered this particularly AI apologism. To recap:
Alice: "in the end, AI doesn't make me any faster because it still takes 80 hours to do 80 hours of work once I fix it"
Bob (AI booster): "actually you might've been holding it wrong, did you try XYZ?"
Carol (super AI booster): "Bob, actually Alice means it took 16 hours to do 80 hours of work. So it did work for her."
Alice: "no I fucking didn't"
Sorry, my original phrasing was confusing which you should not be downvoted for. I've edited my original comment to clarify what I meant (hopefully).
No the second 40 hours is a real 40 hours (two weeks), and the implication is there is no real time saving.