Am still enjoying astrophysicist Katie Mack’s book ‘The end of everything.’ She’s a funny and smart guide through the physics of either end of the Universe. Having sketched out various ways of everything ending, her epilogue makes some space for thinking about what it all means. Some of this is delicious to think about.
Whatever legacy-based rationalization we use to make peace with our own personal deaths (perhaps we leave behind children, or great works, or somehow make the world a better place), none of that can survive the ultimate destruction of all things. At some point, in a cosmic sense, it will not have mattered that we ever lived. The universe will … fade into a cold, dark, empty cosmos, and all we’ve done will be utterly forgotten.Katie Mack, The End of Everything p 206.
She asks fellow astrophysicists what they think about this. ‘Sad’ says UCL cosmologist Hiranay Peiris. ‘I suppose it makes me start thinking about the problems we face as a civilization on a much shorter timescales. If I’m going to worry about anything, it’s gonna be those, not the Heat Death [of the universe]’ says another cosmologist, and former comic, Andrew Pontzen.
Others warm to the idea. ‘I just like the serenity of it’ says Pedro Ferreira. ‘So simple and clean.’ Renēe Hloẑek calls it ‘cold and beautiful’ the way the ‘universe just sorts itself out.’
I found myself sneakily liking these thoughts, despite spending a lot of time being a Christian and believing in eternity. In a universe that just shuts down and switches off, some thorny problems go down with it, not least eternal suffering, which might cheer up Fydor Dostoyevsky or James Joyce a bit. (Or my querulous demon Stub in my Jamie’s Myth trilogy.)
On the other hand, Katie Mack also quotes Iranian-born physicist Nima Arkani-Hamed: ‘I don’t know how [to find a purpose to life] that doesn’t transcend our little mortality … I think a lot of people at some level …. will do science or art or something because of the sense that you do get to transcend something. You touch something eternal. That word, eternal: very important. It’s very, very, very important.‘
We only know of one place in the universe where parts of the universe worry about this stuff at all: us, and here. And among us, among the many reachings-out to eternity that happen, we also have the story or rogue data point of the resurrection of Christ. Which could be a breaking in of the eternity that Nima Arkani-Hamed says is so important, and could be something whose consequences overtake cosmology itself. Interesting.