On a broader level, partisans and authors from the hard-sf and social-sf or “sf of ideas” camps have often gone after one another, but just as often united to go after space opera or any of the lighter genres.

But sometimes there is a readership for simple, or even non-so-simple but very traditional, stories told in a vaguely SF milieu. These are not illegitimate. Indeed, there is room to believe that such futuristic settings might not always change humanity all that much. We aren’t all that different from our own ancestors.