Accelerando by Charles Stross (2005)
This book is about the singularity, uploaded lobsters and space travel. It combines space opera, hard science and some cyberpunk tropes. The beginning contains every buzzword known to man, and is difficult to get through, but the story takes off from there. Lots of futuristic ideas that I’ve not seen anywhere else - for example, travelling to another star in a tiny can-sized space-craft.
This book seems to be polarizing - some people love it (like me), and some cannot stand it. I recommend it though - at least give it a try; you’ll know if you like it or not pretty quickly.