Thanks for your reply @barge, I'm going to have to check into that stuff to get a better understanding, it sounds like it will be a worthwhile read but I'm hoping I'll find audio content from the author. I tried to no avail to find the talk where the guy made that analogy about the brain and the resting dopamine levels. I'm kicking myself now for not saving it, as it was a concept I never heard of. If I ever do find it, I'll be sure to send it your way.