To me this is like telling someone that wants to grow carrots that carrots are just atoms arranged in a certain way. It may be true, but it's not helpful. The

To me this is like telling someone that wants to grow carrots that carrots are just atoms arranged in a certain way. It may be true, but it's not helpful. There are a ton of factors that influence both calories in and calories out, they aren't just noise. (This is just a response to your comment, I didn't come away from the post thinking the book treats everything else as just noise.)