What proves it for me is all the obvious memory optimization tricks. I believe there is an array of fixed size attached to the local spacetime cell which keeps

What proves it for me is all the obvious memory optimization tricks. I believe there is an array of fixed size attached to the local spacetime cell which keeps a list of weird/uncommon words. This is why we often see the same uncommon word multiple times in close proximity across otherwise-unrelated contexts. Example: The other day I saw the word "rackset" on a piece of equipment at work. Later that day I saw the same word on a completely unrelated thing. That's not a word I've ever seen before. And now all of the sudden it's getting used in multiple places. It's so immersion-breaking.