These are great stories. There's certainly something to be said for the last minute before sleep questions. They seem to be some of the most profound. Like their bodies finally take a back seat so their minds can work. I think I understand the time space continuum better now.
Some I've had recently from DS4.5 include, "is infinity a prime number?", "how does your brain make pain?".
Also had a time one, "I can see time."
Me: "What do you mean?"
DS: "I can see a line to that book."
Basically boiled down to my having told him that it takes 8 minutes for the light of the sun to reach us. He reckoned that the time it took the light from an object to reach his eye represented him being able to 'see' time.
