The question "Why are we so behind the predictions of science fiction?" was closed since it's off-topic. However, it is a question that's on-topic for scifi.SE. I put in a comment and flagged it for moderator information regarding both points(being off-topic and migration). However, though it was closed it was not migrated. So, what is the procedure for migrating a question? Or was the question rejected for migration?
This question is a bad question on any site. In fact, it's pretty impressive in the way it concentrates badness in a single short sentence: “Why are we so behind the predictions of science fiction?”
- Which predictions? Obviously some predictions have been realized (e.g. heavier-than-air flight), some haven't (e.g. immortality).
- There's a flawed premise, that we are behind the predictions (whatever they are). Are we? Since that's a completely subjective, unquantifiable judgement, there's no way to discuss that constructively, let alone answer questions about it.
Please “What kind of questions should I not ask here?” (this section is in the FAQ of every Stack Exchange site). In particular:
avoid asking subjective questions where …
- there is no actual problem to be solved: “I’m curious if other people feel like I do.”
- it is a rant disguised as a question: “______ sucks, am I right?”
The FAQ also links to Robert Cartaino's blog post on the six guidelines for great subjective questions: great subjective questions…
- inspire answers that explain “why” and “how”: ok.
- tend to have long, not short, answers: no. Such a short question, clearly having cost no effort whatsoever from the asker, does not inspire answerers to write long, thoughtful answers.
- have a constructive, fair, and impartial tone: no. The question is almost flame bait.
- invite sharing experiences over opinions: no. No one has experience of realized and unrealized science fiction predictions.
- insist that opinion be backed up with facts and references: no. Same as above.
- are more than just mindless social fun: no.
Goodness ratio 1/6, definite close.
Such a question only deserves a speedy close (off-topic, not a real question, subjective and argumentative… they all apply, so just pick one) on any Stack Exchange site.
Now I'll speak specifically as a current pro-tempore moderator on Science Fiction and Fantasy Stack Exchange. We have had similar questions before. They're closed (and the ones that aren't deleted as I write soon will be). The response to such questions were generally picking on some particular example of prediction and arguing whether the prediction was realized. Nothing remotely useful came out of them. If this question had been migrated to SFF, it would have been closed there very quickly.
You followed the right procedure by flagging and putting a comment asking for migration. However you should wait 24 hours before prompting the moderators for an answer (or possibly try to catch them in chat) as they might just not gotten to it yet. Assuming it's valid for migration.
The reason I didn't migrate it is because it is a low-quality question and likely off-topic on SciFi. The question is extremely broad and invites speculation, it's just not a good fit for a Q&A site.
In addition to what Fabian writes, there's a moderator guideline against moving questions to beta sites.
The migration dialog says "Please avoid migrating questions to beta sites unless the circumstances are exceptional."