Wait was that the paradox she used at the end? Deus ex machina?
Im glad this manga has a more cohesive plot than the start but I think ive gotten lost again xd
Probably the Arrow Paradox.
Just a general summary:
Take an arrow moving through the air.
At any single moment of time, if we take a snapshot of the arrow, the arrow is at a single location and at rest.
The total movement of the arrow is made up of all these snapshots where the arrow is at rest.
Since the arrow is at rest at all moments of time, then the arrow cannot be moving.
So movement should be impossible since everything is at rest at any instant of time.