That brings to mind this:Well, it's 7:10pm PT right now, and my post from 3:42pm PT still has the EDIT button.
And the edit worked, so...
To be fair to Ford Prefect, it is kind of hard to figure out that you're dealing with conditional causality when you're drunk off your arse, let alone explain it to a semi-evolved simian..."Eddies," said Ford, "in the space-time continuum."
"Ah," nodded Arthur, "is he. Is he."
...
"What?" said Ford.
"Er, who," said Arthur, "is Eddy, then, exactly, then?"
Ford looked angrily at him.