Theory history: Submitted 2009-04-03, Doubtful 2009-09-12, Debunked 2012-10-25
Mur sent you to the Edge to deactivate the defense systems. The defense systems are on the edge of the subnet and keep people from being inadvertently sucked into the submachines. Mur is angry at humankind for not understanding his powers and for rejecting him, so he wants to punish them by trapping everyone in the Subnet