That’s the simulation buffering. I won’t go into the math, because I don’t understand it, but as the universe expands, the quantum field is stretched. This requires more and more memory to access specific data. Every conscious thought, by an increasingly populated universe, contributes to this expansion and destabilization of memory. This entropy requires the simulation to compartmentalize data to make memory more efficient. It’s why the answer is always on the tip of your tongue. Eventually the connections will be so disparate along the quantum field that everyday tasks will take longer and longer.
TLDR: The universe has dementia.
If we’re not in a simulation then we have to be prepared for the fact that panpsychism is real, which is another reason we need universal healthcare.