Consider that we have measured and know with a high degree of certainty that the cortex in the entorhinal cortex region codes for a distributed representation that we are calling grids,
It complicates things to assume that different areas use some other method to mingle streams of processed sensory data together for SDRs to sample and learn. Maybe there are many other forms but I am applying Occam’s Razor and assuming that this is a gateway to understanding a fundamental coding method of areas that communicate with older brain structures and perhaps between different association maps.
Matt Taylor made this delightful example to show what this might look like: