In the opening credits of season 2, it says 'based on the book by Richard K Morgan', and the only other clue to hang this on is that the production is called Altered Carbon; however, season 2 is actually based on an amalgam of the books entitled Broken Angels and Woken Furies, respectively, and does not cover any material described in the book entitled Altered Carbon.
Joel Kinnaman's character, Takeshi Kovacs wakes up after essentially being asleep for 250 years. Yet he easily navigates the city, seems very familiar with the culture, and uses technology as if he's never been away.