My take on this goes back to 1994.

SCIENCE FACT FOR SCIENCE FICTION
Words: Nigel Parsons

Music:It Ain't Necessarily So

It ain't necessarily so
It ain't necessarily so;
The strange contradiction 'twixt science and fiction
It ain't necessarily so

You can't have your F.T.L. Drives
You can't have your F.T.L. Drives
You can't span the galaxy; by-passing history
Out-living your grandchildren's lives

You can't travel backwards in time
You can't travel backwards in time
Change hist'ry or rather become your grandfather
And not just 'cos incest's a crime

Arthur Clarke gave us Telstar up high
Jules Verne gave us rockets that fly
Science form follows fiction; there's no contradiction
But scientists can't understand why

Now science is setting the rules
To show S.F. writers are fools
Dimensional jumps; rubber sheeting with bumps
Are just some of S.F. writers' tools

The Telegraph tells us we must
Take heed of old Einstein, not just
Utilise time travel else time will unravel!?
But now I think I've got it 'sussed'

Now Einstein's Relativity
Is the cause behind this filk ditty
I'll say (while I'm beery); it's still just a theory
Not proven, nor ever might be

Let's put all this bick'ring to rest
Time travel, light speed and the rest
I propose an alliance 'tween S.F. and science
'Til Einstein's been put to the test!


Note: This was inspired by the article in The Telegraph in 1994 about funds that the government had made available to pay for real scientists to come to Science Fiction conventions and try to educate our authors as to the realities of life... (or something like that)