- Fridge Brilliance: If Josh would have left at the beginning he still would have been the only one to survive, though it probably would have rescued the other man he was with at the time. Everyone probably still would have died, but Josh would have just known that his dad died in the cave, not having to live with the fact that he drowned him in the cave and lived through all the troubles.
- Carl might have been able to escape had Josh left at the beginning, as he would have had the oxygen tank that Josh used in his final escape. Though it's also possible that without Josh's climbing skills, no one would have made it through the very difficult passage over the "meat grinder" pool where Victoria died.
Fridge / Sanctum