In addition to the credentials that was listed, I'd say it's relevant as its about an engineer thinking he should try founder/executive and realising that it wasn't the right fit for him now. That could be useful for the many people thinking about transitioning down the same path.
Given his affinity towards programming languages, he sounds more like a computer scientist than an engineer, frankly. I wish the two roles didn't get conflated so much.
I'm not sure a physicist is the right term, but there is a difference between your usual carpenter and someone who wants to study hammers and come up with new ways of building them and using them.