Basic / Specific Questions about coding HTM

[Bitking]

@Jossos

“In actual cortex the number of mini-columns is vastly greater.” - I googled this, and wikipedia says " There are about 100,000,000 cortical minicolumns in the neo-cortex with up to 110 neurons each, giving 1,000,000–2,000,000 cortical columns."

which with simple math gives you 100 mini columns per cortical column. am i reading this wrong? or are cortical columns not really separate entities?

Estimates vary between 100 and 150 cells per column. There is the further complication that the cells are distributed between layers 2/3, 4, 5, and 6. Layers 2/3 & 4 are thought to form the feed-forward direction of processing and layers 5 & 6 are thought to form the feedback pathway.

You can see the actual mini-columns with a microscope. To the best of my knowledge nobody has been able to demonstrate actual macro-columns although the way that lateral connections work are very suggestive and there are important theoretical reasons why they should exist.

I have my own theory that I have been boring everyone here with for a long time - that the local macro-grouping is a hexagonal grid structure. I have a post that outlines why I think this makes sense:

HTM Mini-Columns into Hexagonal Grids!

Or at least some wild conjectures to provoke thought! This post assumes that you are familiar with basic HTM theory and are conversant with the concepts of SDRs and HTM minicolumns. May I be so bold: [HTM%20and%20GRIDS] First - let’s be clear what I am and am not talking about. This is about cells that work by forming regular hexagonal grid structures and are not necessarily the same thing as the “grid cells” that are coding some spatial aspect of the surrounding environment. These grid-fo…