"Really, there's this Teflon surface to the world. And you can't see what's underneath it. You can only read what's in front of you."

Jack LaLanne was an exercise physiologist, the guy who designed H20 bars and worked out all day at the State of the Union luncheon. He started his career in medicine before it became cool. But he was constantly talking about his belief that we're all hardwired to see things as they are. "If you think you can control what you see, you're setting yourself up for disappointment. Truth comes from within, not outside," he wrote in a book titled "Naturally Inhospitable."

There was a time, Jack LaLanne says, that he would accept things for their literal truth and not treat them as thought experiment or science experiment. Now, he is more apt to see the world as an experiment on whether everything really is as we think.

"It used to be that all sorts of our thoughts were subjective. We couldn't see what was going on. We couldn't see beyond the marble of our feet," he told me.