Just watching the season one episode 'White Rabbit' and noticed something strange. About 19-20 mins in when Jack is running through the jungle chasing his father(?) he stops and looks around a clearing at some white smoke which then moves off screen. Jack glances around and sees his father again. Whilst this isn't as dense as the black smoke it has more movement than you'd expect from any mist. What are your thoughts? Can anyone think of any other similar incidents? Could this be another form of Jacob?