Cool. I would say take out the short term memory. A true Pe (P+) process would be able to go back to an object for further exploration and then jump back to another one. Yes with memory it gets bored because it remembers it has explored it, but not a pure Pe process, just like in real life we can revisit and explore the same object again and find new things. I would say then that the Pi process or P- would include a kind of layering of Pe data for when it gets reprocessed “deeper,” meaning just a bunch of reprocess d layers on top of each other, kinda like Google’s deep dream generator algortyrhm where you could submit a picture ad infinitum to be reprocessed and it got weirder every time. So the pe process wouldn’t go in a circle, it would re-explore again and again  indiscriminately