FlashForward
Not everyone saw flashes, and the common belief is that those people didn't see their futures because they would be dead before that date in April. One of our POV characters is in this situation. Another saw something that "could not be true" -- he saw someone known to be dead. Another claims to have seen someone who didn't have a flash (so presumed to be dead).
I had my suspicions, and tonight's episode backs me up. My theory was (and is) that each person saw his most probable future at that time, not the certain future. (No, that doesn't yet explain the contradiction yet between Demetri and Zoey; no theory is perfect.) In tonight's episode someone who had a flash commits suicide, making that flash pretty improbable. This should mean that all the other flashes can be changed too. (It also casts rather a different light on the guy who went along with the game of Russian Roulette because he knew he'd be alive in April...)
So the future can apparently contradict the flashes. The trick for anyone who wants to try is to figure out how to do it without being like the man who tried to flee death.
ABC recently committed to a full season. I hope it stays this interesting.
Re: It's a good thing your life isn't dictated by what you do in the book