A colleague of mine had a physics degree and decided to become an electrician. Took very little time to learn. That's not to condescend on electricians, they c

A colleague of mine had a physics degree and decided to become an electrician. Took very little time to learn. That's not to condescend on electricians, they clearly have a useful skill. And being able to certify a house pays a good few hundred pounds a day, nothing to sniff at. But if you're used to looking at physical models, learning a few conventions and adding another model won't be terribly difficult. I think a lot of people are actually better off doing that kind of work. There's a tangible output that is much easier to connect to purposefulness than if your job is mainly in the ideas realm. A cousin of mine that I grew up with is a carpenter and seems to cheerful all the time, now that he knows what his thing is. I grew up with him and it wasn't always so.