Anecdotal evidence, how scientific of you. When I say it's unfounded, I'm saying it hasn't been proven with actual research and data. So when you ask, "by whom?", that's exactly my point, it is unfounded. That's what that word means, no one has made a claim, backed by data, that AI is making significant waves on productivity. I don't think I've missed the point at all, but it seems I hit an emotional nerve with you though, so the conversation is over.