alt text:
Many a hungry time traveler has Googled ‘trilobites shellfish allergy’ only to find their carrier had no coverage in the Ordovician.
alt text:
Many a hungry time traveler has Googled ‘trilobites shellfish allergy’ only to find their carrier had no coverage in the Ordovician.
A time machine is a faster than light drive.
Well, the other way 'round, really, but same difference.
And to come back you need a slower than (but very close to) light drive.