I read it as saying our 3-d world can be encoded in ways other than a stream of x y z coordinates. Possibly a stream of 1-d "a" coordinates, which are translate

I read it as saying our 3-d world can be encoded in ways other than a stream of x y z coordinates. Possibly a stream of 1-d "a" coordinates, which are translated to our reality by folding the "a" stream in different directions like a physical hologram.