I love this metaphor that you offer at one point in the book, of treating your life as a marble sculpture. One selects a way the universe will be and thereby eliminates ways the universe could have been like so many fragments of marble chiseled away. So there's a rationality involved in trying to not make especially big decisions,. Big decisions have big consequences, and then you have to take responsibility for them. And do you think most people fully appreciate kind of how extraordinary this power is that they have?