The Nervous System Is a Limited Capacity Highway

"It's really important to pause and reflect on what it means to be a human being," he says. "We have a finite number of resources that our brain can give to paying attention to anything at any given moment." The nervous system is a limited capacity highway, like where I-5 meets I-84 down here in New York City. If you're held an ice cube in your hand, it's terribly painful,. if you go into your freezer and you get an ice cube  on one of these 80 degree days this week, just hold the ice cube...you'll feel pain.