I remember in the Kleiner's lab video, Alyx said "we should have listened to my father and done it his way", this suggests somewhat of a non-linear storyline in the game. Also, in one of the dev interviews it was stated "the characters wil react differently to you based on your actions and how you handle yourself in particular situations" or something like that. Does anyone else think that there will be somewhat of a branching storyline in Hl2?.