I remember 3001 mainly for the bit about deism vs theism, which is one of my favourite throwaway passages in all of sf.

8<-------------------

"You said that all the old religions have been discredited. So what do people believe nowadays?"

"As little as possible. We’re all either Deists or Theists."

"You’ve lost me. Definitions, please."

"They were slightly different in your time, but here are the latest versions. Theists believe there’s not more than one God; Deists that there is not less than one God."

"I’m afraid the distinction’s too subtle for me."

"Not for everyone; you’d be amazed at the bitter controversies it’s aroused. Five centuries ago, someone used what’s known as surreal mathematics to prove there’s an infinite number of grades between Theists and Deists. Of course, like most dabblers with infinity, he went insane."

All I remember from 3001 was a bit about velociraptors being used as gardeners and babysitters.

Nothing in this thread makes me feel I should change my mind but de gustibus and all that.