[b]Speculation time![/b] Perhaps the Traveler itself is responsible of keeping Exo's systems online. If they were indeed Traveler-powered, then it'd be fair that they can naturally tap into its incredible energies. It could also be linked to the Exo's sudden reboot because of the Traveler's sacrifice (emergency shutdown?). Any more ideas? Actually is fun to imagine how thinks [i]could[/i] work.