I have read a few S-Tier fantasy books but never came across an S-Tier science fiction book.

I start to believe there's no such thing as an S-Tier book in that genre.

Used to build @kiwi | https://macbudkowski.com/

S-Tier doesn’t live in sci fi books

how’s life after kiwi going btw?

yeah, my theory is that's different types of authors work on sci-fi books. 

they have great knowledge but lack writing skills that are necessary to get from 8/10 to 10/10.

life is good, been exploring different ideas lately