I think this was settled decades ago. By Duchamp's Fountain. He was also a hell of a chess player.
"I have come to the personal conclusion that while all artists are not chess players, all chess players are artists."
I feel like books are a conversation between author and reader, so I'm happy to conduct that conversation in the margins. When I go back it's interesting to see what I thought the last time I read it - so it becomes a conversation with a past me, too. I love finding marginalia, it brings a books...