I am pretty sure that this was a flash back for the newbies on the island, cuz why would they do three out of the four flashbacks? Also, anybody notice that even though charlotte had the coolest one with the darma collar, all of them had connections with the island in someway or another. Miles with the paranormal, Norris with his pilot buddies, and Dan is a crazy physicist. Just like the scientists that were probably around the island at the time of 'the incident' playing around with their physical phenomena.
Just throwing that out there