Something I don't get about Terra Nova

[brak666]

So, there's something I don't get about the premise of Terra Nova. Leaving aside the Grandfather Paradox for a moment, if one were to travel back to prehistoric times, to establish a colony with the stated purpose of averting humanity's extinction, why would one do it prior to the K-T EventAnd back to the Grandfather Paradox, they're taking an

Comments

[natlyn]

Because the K-T Event would wipe out all trace of their having existed and therefore wouldn't affect the human evolution. … Oh wait, all trace wiped out … um.

Yeah, what up with that?

[brak666]

The wiki entry says they're traveling back 85 million years, which is about 20 million years pre K-T, but presumably the intent is that humanity will flourish in perpetuity. Or do they just not give a crap because they'll all be dead by then? Perhaps they expect their descendants to back step again? The past is going to get awfully crowded if that's the case. Not to mention eventually they'll be traveling back in time to an uninhabitable planet. Am I over thinking this?

[natlyn]

Perhaps they figure that within that 20 million years, humans will manage to come up with some other brilliant idea--perhaps going forward in time past the pollution damage to a point when the Earth has healed itself.

Overthinking? Noooo, no, no, no, no, maybe.