Just got through listening to Fat Loss Happens on Monday, the latest from Josh Hillis and Dan John. I'll do a full review after I actually read the book, but from the listen, I like it.
One of the things I like is that Hillis has set up a system that's explicit designed to try and take the emotional equation out of fat loss. It's not about "good" or "bad" food. It's just about results. Follow the system, track what you're doing, evaluate the results. Is what you're doing working? Keep doing it. Is what you're doing not working? Change it.
Great fighters are capable of doing the same thing. Tony Blauer has an axiom that the superior warrior has no emotional attachment to any range or weapon. Some of this parallels Rory's observations about the difference between fighting and hunting/butchering. One is an emotional contest. The other is clinical. The clinical fighter, the detached fighter, is much more dangerous.
Of course, it's easier to write or talk about than to do. Detaching emotionally from physical conflict is very, very difficult. Evaluating your performance round to round, or moment to moment, with that detached view takes a lot of practice and effort. But if you can achieve it, you become a very dangerous individual.
Food for thought.