Yes, I really enjoyed that analogy. It's important to bear in mind that analogies don't prove things, they are just illustrations. What I particularly liked is how he did a very good job at backing it up with different studies that support it. As I was listening to the book, pretty much all the questions I had he answered in a very methodical way.

I've started trying intermittent fasting and low carb/high fat so far I'm amazed at how much energy I have. Still early days and I have a few old habits to kick. But it's definitely going in the right direction.