I am not sure about you, but I am aware that I get ideas and have no sense of why that idea popped into my head. That does not mean everything I think is profound. Some stuff that pops into my head is crazy. Some of it is random, irrelevant or even stupid. But sometimes some good stuff pops into my mind. An idea like that is analogous to someone walking up and handing you a $20 bill. I can imagine that person saying, “Here ya go, $20 just for thinking!” Most of the time, these ideas come and go. I don’t pay enough attention, so I know I have missed some very good ideas. Of course, the bad ones should be forgotten. And I should just laugh at the stupid ones and forget them, too. When I talk about the good ones coming into my mind, I am not talking about the ideas that come when we are in that half-sleep, half-awake state. I have in mind more the kind of ideas that come when we are in the shower or doing so...