"You're right, it would be in the best interests of the Nexus but I'm more than sure there are people here who would take advantage of the resources and technology that my world has." Jack is fine with non-humans, but he knows that a universe where time travel exists can be dangerous in anyone's hands.

And his lengthy experience in the field has shown him what those with ill motives are capable of. "So what does this place have in the way of making sure people don't abuse these portals?"