Reading continuous-time markov chain, while the brain remembers Thief of Time about Wen the Eternally Surprised.
>
The first question they ask is: 'Why was he eternally surprised?'

And they are told: 'Wen considered the nature of time and understood that the universe is, instant by instant, recreated anew. Therefore, he understood, there is in truth no past, only a memory of the past. Blink your eyes, and the world you see next did not exist when you closed them. Therefore, he said, the only appropriate state of the mind is surprise. The only appropriate state of the heart is joy. The sky you see now, you have never seen before. The perfect moment is now. Be glad of it.'

Terry Pratchett the Mathematician.