Most people cannot pay attention to anything for 30 seconds without getting lost in thought without significant training.

“that if we just put a stopwatch on this table, and people could just watch it 30 seconds elapse, and I set all of our listeners, or your viewers, the task, for the next 30 seconds, just pay attention to anything-- your breath, you know, or the sight of your hand, or the sight of the clock, or any object-- without getting lost in thought, without getting momentarily distracted by this conversation you're having with yourself. A couple of things would happen. One is no one would be able to do it, right?”