No the second 40 hours is a real 40 hours (two weeks), and the implication is there is no real time saving.

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).