-Oh, so that's how time travel will be accomplished? Just a model train and an R/C car...
Or perhaps that has already will be done?

OT:
I think it was the late Steven Hawking who one day threw a party for Time Travellers, but had invitations sent out the day after...
They seemed in all to be a pretty subdued bunch: humble, passive and really anxious not screw up our causality dogmas.
Serious drinkers the whole lot - but conversational humor from 5212-ish A.D. was apparently tough on the host's temper.

Physicists doesn't seem to have a theoretical problem with that, (merely some minor practical ones) but linguists have both problems.
"-I've never seen a Black Hole I didn't like, but I can't stand the sight of Naked Singularities!"