I think the dialogue wasn't specific, and probably for the reason that the writer didn't bother with the actual science.
But as for
Red Dwarf, you have, as elements of soft science...
*Going faster than light
*A mutated form of pneumonia creating solid hallucinations
*A man falling pregnant...to his own female counterpart from a parallel universe
And that's only the first two series.
Red Dwarf and
Doctor Who run on science that does as the story demands.
Red Dwarf does it for the sake of comedy, and
Doctor Who can, for the most part, use Clarke's Third Law as an excuse.
Of course, overanalysing the story
[EFF!]s up the entertainment value. So the MST3K Mantra is in play at all times.