This is very "distant" suggestion if you enjoyed Antimemetics, but The Unconsoled by Kazuo Ishiguro is another one of my favourites, and it too explores this idea of unreliable and inconsistent memories, although from a completely different angle.

I consider Recursion by Blake Crouch to be similar, even though I liked Antimemetics much better. I haven't read Crouch's other books, but have heard that Dark Matter is better than Recursion, though it may be less similar to Antimemetics.

Library at Mount Char, Southern Reach trilogy (Annihilation/Authority/Acceptance), Laundry Files (kinda).

Definitely looking for other reqs, raw shark texts look very interesting.

I've enjoyed most of Isaac Asimov's work, especially The Last Question.

I also liked a couple stories from Ted Chiang's Stories of Your Life and Others.

Try Dissolution by Nick Binge. Same weird vibes.

Perhaps Permutation City by Greg Egan though I didn't finish the book.

I've heard Accelerando by Stross is good too.