https://www.cnbc.com/2022/07/15/millionaire-who-retired-at-35-why-im-not-scared-of-a-recession.html
"People thought we were crazy living so minimally during a bull market where everybody's making money. [They said] we should be living large," Adcock says. "But we didn't do that. Now we're making almost no changes, and everybody else is."
See? If he can do it, so can you.
It's probably written for those who want to follow FIRE (financial independence/retiring early).