A phone with current hardware but without a camera notch in the screen. I absolutely hate the notch, it annoys me on a deep level that I can’t get over.

The vastness of time and space.

I think Diaspora by Greg Egan had a chapter with a crab planet, or maybe it was a crab universe. Its been a long time since I read it but I remember a scene where someone kind of turns themselves into a crab so they can talk to alien crabs about math and physics.