We have entered some kind of time loop. A second USS Signature appeared in the same universe, in “our” dimension. Identical crews of us appeared before us. We made sure none of us interacted directly or changed “places” in case we alter time.
We have entered the time loop. The older USS Signature is cautious in keeping with Starfleet protocol. The older us must act in exactly the same way that we remembered the encounter. We must not alter the future. This is uncharted territory, or rather uncharted time.