This guy is a case study for dunning-kruger.

Unlike another popular YT personality like Doug, who literally has zero qualifications outside of marketing.. This guy Scott is a tradesmen. He's a car mechanic. He's not an engineer, and probably couldn't become an engineer given 10 lifetimes, because the guy is obtuse as fuck, seems deliberate, but probably just dense, and doesn't understand shit about engineering.

His general advice isn't always bad though. Just take everything with good heap of salt... Or find a better source. The problem is, good sources usually require reading. Something which this illiteracy promoting culture of passive consumption has strong aversions.