The Importance of Processing

I think most certainly came from processing. A lot of the things we've carried forward into our built environment probably come from that music. When you see somebody trying to, who's bored? It's because they're not processing food anymore. That is sort of central to what we have always done. Another thing I'd point out is that exercise was sort of built into all of this. So here we are now degenerating away from a lack of cardiovascular, cardiorespiratory exercise.