I'm thinking the flash forwards are kind of the same as Jacob's visions in the first season of Heroes. Some are unavoidable, some aren't exactly what they appear, and some can be avoided with knowledge that they're coming.

Anyway, as of episode two, I'd like to know if the show is ever going to address the temporal paradox of the information in Mark's vision. The notes on the wall in the vision lead to the notes being on the wall in reality, which become the notes in the vision... where did the information come from?