I suspect he’s being very misleading however in calculating his hourly rate. If he’s working overtime without pay, that means he’s a salaried employee. With that, it doesn’t matter how many hours you work past the 40 – you just have to get the job done.
I was on salary for a few years but I only came in on a Saturday once, and stayed late once. I knew it was “unpaid” – I calculated my earnings on a 40 hours week and didn’t want to make “less”. Also I knew I could catch up during regular business hours if I’d scramble.
In short, when you’re on salary, there is no overtime. You just have to get it done.
Also, there’s efficiency: Was he _really working_ those 40 hours? How many toilet breaks? Cigarette breaks? Was he paying his bills at work? Checking his facebook? Gossiping with co-workers or taking an extended lunch?
Of course those are “internal” hours, realm of Human Resources ultimately but still, for full disclosure, there’s many more variables that could come into play.
I’m sure SOMEBODY out there has a maximal efficiency | maximal effectiveness | maximal value calculation out there. Mathematically marvelous if it exists (and I’m sure it does) but it would be hell to implement.
But I have no problem with a growing AI workforce either, so long as the benefits find their way back into the communities who used to do those types of things, somehow.