This is a microcosm of how employment works in the world at large.

You aren’t paid based upon how difficult your job is, nor are you paid strictly based on how much value you add. You’re paid based on a function of value added, AND how replaceable you are. Essentially supply vs demand. If your job is hard and you add a ton of value, but you’re easily replaceable, then you won’t make much money. There’s just too much supply. It doesn’t matter that RBs are important if you can just throw a rock and hit someone who can fill the role.

Likewise if you’re difficult to replace, but don’t add a ton of value you also won’t make a lot of money. My best guess for an example of this would be long snappers.

I think this is terrible advice for most people. You only need to spend like an hour in the airport to avoid missing a flight. Most people don’t fly often enough to get much actual gain from pushing this boundary. The only person I knew who would push the envelope like this was someone who flew every week for work. That makes sense to me, because you’re saving two hours every week for years. If you’re only flying a few times a year just pack a book and ensure you make your flight on time.

Reading this right now, and a little over halfway through. Enjoying it, but it took a long time for me to really sink my teeth into it. It’s a very long book and a slow burn.