D
Deleted member 84247
Guest
A classic debateNot always. A lot of sci-fi uses existing science and just jumps the scale out to interstellar or galactic levels.
Thinking about it, 2001 was a bad example because the Monoliths are very 3rd law. I just wasn't thinking about them.
'Real' sci-fi is colony ships traveling for a hundred years to reach their new home, or asteroid miners flying around prospecting the belt. Things that could literally happen with modern tech, if people really wanted to.