Donnie was able to get a good idea of how datapoints work, and that most brains actually aren't capable of sustaining two at once. Which is why one overwrites the next, for safety. Swapping a lot can degrade how well one uptakes the next, so swapping a ton is not the best idea. That said, while it degrades how well one uptakes, they can actually access the information better in a strange contradiction.

And yes. It bricked. Twice.