I'm with you. The idea of being immortal is terrifying to me. Will I still care about nature after seeing millions of extinctions? Will I still care about life when I see trillions of humans doing human things? Will I even still feel part of the universe as the only permanently unchanging thing?

Hard pass. Besides, if we were immortal, we wouldn't have my favorite quote, which feels a bit relevant here. As the great mind of our time, Bill Watterson says: "There's never enough time to do all the nothing you want."