I don't mind technical fiction, and I love a good hard scifi, but I guess the part of science I am most interested on (when I read literature) is the psychological one - Blindsight is by far my favourite sci-f. However I am totally up for trying Accellerando, so thank you for the reccomendation, you sold it to me :P
Try Adrian Tchaikovsky’s SF series; particularly “Children of Time” and “Bioforms”.
I think you mean lobsters.
Accelerando is a fixup of a bunch of short stories, and one was "Lobsters".
https://reiszwolf.wordpress.com/2020/04/11/lobsters-%E2%80%A...
I would recommend it not just for the philosophical aspect (it has a very interesting way of placating transhumanism) but also for the entertainment aspect (aforementioned shrimps, did I mention the Iranian space program?)
Stross is a very approachable author, Accelerando is not his most accessible book, but if you can go through half of Diaspora, you can easily go through the entirety of Accelerando.