AI is wonderful and will make your life better! (not)

I have some questions for the AI experts here. There are several AI threads I might have posted this in, but I thought this one would be the best one to obtain reasonable answers in. If a mod wants to move it, fine by me.

A few months ago, my wife found this YouTube channel, which features nearly 300 videos, all over two hours long, with “facts” about various science topics, intended to put you to sleep.

It works pretty well for her. Before this, I would often read her random Wikipedia entries until she fell asleep. So this is easier for me. I just turn it off after she starts snoring.

The first few nights she played them, I marveled at the notion that someone had written and narrated (very professionally) such long videos. It was only a few nights later, when it mispronounced a word (I think it was “live” with a short I instead of a long one, or some such thing) that a real human would never do, that I finally realized, “Oh, this is all AI.”

FWIW, in that portion of the videos I have listened (and paid attention) to, I have not heard anything obviously wrong within the limits of my understanding of the various topics.

Since then I’ve found that there are lots of other similar channels of entirely AI-generated videos for sleeping. To say nothing of all the awful AI slop of other kinds, clogging up YT.

So my questions for you guys are:

How much does creating 150-minute videos like these cost the founder of the site?

How long does it take AI to generate them?

How much money is he likely to be making from them?

I suppose I could ask AI all these questions, too, and maybe I will, but I thought I’d ask here first.

(The putative creator of the site explains how he came to do it in this video, but a comment suggests that that video is also AI! It’s AI all the way down!)