He says the greater the prosperity the lower the birthrate. He talks about Romans had prosperity and a declining birthrate.
https://www.facebook.com/reel/863880249220636/?mibextid=9drbnH
Another ironic anecdote from Elon, about a laser welder that wasn’t working.
https://www.facebook.com/reel/1574371253438174/?mibextid=9drbnH