[drhagen]

A funny thing I realized: immortality is incompatible with spending a nonzero fraction of my life with children.

I treasure the time I spend with my kids. I can see that this season will be over soon. This won't be my whole life, but it will be a significant fraction of my life. If I were immortal, this would be a tiny blip in the inconceivably far past for 100% of my life.

You may think I could start again every 100 or 1000 or million years, but if a nonzero fraction of people did that, that would be exponential growth. Even ignoring resource constraints, you cannot sustain exponential growth of any kind in a 3D universe.

A universe with kids necessitates a universe with death.

[card_zero]

Yes, but why do people treasure time spent with their kids so much, expressing the feeling in revelatory terms - why this addiction to reproduction, the thing that perpetuates the genes that might cause the feeling? It's suspicious.