"That's the running theory, that it's an extension of the tether we have. Provided we haven't been fed data that isn't true." He always feel the need to disclaim that, he wasn't sure everything they were told was the truth.

"The tether, as we understand it, is keeping us safe through the void and it's what allows for death to just be a minor inconvenience. If you die, you wake up again in the luggage sometime later." Senku explained. "The whole mystery is fascinating, if you ask me."