It is not entirely clear how significant the change from the alpha timeline must be to create a doomed timeline and if paradox space only cares about outcomes or also the specific actions leading up to them. Terezi Pyrope was able to accessthe memories of her Game Over counterpart, along with the memories of other ghosts, using her powers as a Seer of Mind. Squared Sprites are naturally able to access the memories of many of the alternate selves of their prototyped components.