Neuron attaching nanites = borg collective on Earth. Everything can entangle, not just quanta. Evidence: mothers can feel it when something happens to their kids from far away, identical twins both get sick at the same time on opposite sides of the world. So all you need to do is entangle and manipulate the key points like nerves and you can do anything with anything. Entanglement between 2 points of space, entangle with the portal itself, widen the portal... time travel and space travel. You can do anything with anything.