Why type numbers into computer?
It does seem a little stupid to require that someone types those numbers manually into a computer every 108 minutes, doesn’t it? One would have expected Dr Chang to be more inventive than that. It’s more like a strange dream than a security system at a nuclear installation. Can someone think of another reason for this non-practical and dangerous solution (beside the Lost story-telling point of view)? Didn’t they have time to come up with something better before almost everyone died? But why requiring that a number sequence is entered?