SCC and temporal mechanics

My computer held off dying for longer than I expected, but the day's coming pretty rapidly. Yep. *sigh* It's all but impossible to look at pics -- only pure white screens are even tolerable.

Anyway, last night's Sarah Connor Chronicles made me rather thinky.

Minor spoilers.

( Everything I know about temporal mechanics I learned from Stargate, sort of )

eta:
And this is so strange about Heath Ledger. Given his make-up for the Joker and the suddenness of the death, I'm reminded very strongly of the death of Brandon Lee on the Crow (albeit this isn't on set, but I wonder how much ADR and such he was still supposed to do). It's that same sort of HUH? feeling.

And to think just last weekend I was reading a magazine which was talking up the buzz on Dark Knight as well as a retrospective of Lee's death....