"I can't figure out why your brain would "rewrite past memory" instead of simply persisting the old image either." There isn't an image to persist. The "image"

"I can't figure out why your brain would "rewrite past memory" instead of simply persisting the old image either." There isn't an image to persist. The "image" you see is an active construction of your brain working on incomplete and inaccurate sensory data. As a hypothesis, your visual system doesn't have the memory to "persist" the sensory data, the data during the saccade is not meaningful, and your brain, while constructing your own personal chronological sequence after the fact simply uses what it has on hand.