I have some questions on the temporal Memory.

Suppose there are two sequences that start with the same first 3 inputs for instance:
ABCD
ABCF
Then after ‘C’ is shown, there should be a union of possibilities that is resolved when the 4th input is presented.
This Union is a union of predicted cells, not a union of ‘active cells’.
Is that correct? In other words, you never have a union of active cells, in any situation? 
Suppose for each encoded input, there is only one column to represent it. (In practice you might have 40 columns representing that input, and each column involved in representing more than one input but this makes it simpler). Also suppose that each column has 4 cells in it. So for a sequence A B, there would be at most 4 * 4 (16) possible sequences that could be represented?

When a cell is predicted, it is biased to fire and inhibit other cells in its own column. But that bias is only relative to other cells in its own column. It has no effect on other columns except that it after it fires, it depolarizes to different columns than the other cells. Is that also correct?

In the coming article “Why Does the Neocortex Have Columns, A Theory of Learning the Structure of the World” there is supposed to be an associated video that explains how the sensorimotor model works. When will that video be available?

In the sensorimotor model (temporal pooler), from what I understand, ,the top layer does have a union of active cells, not just a union of predicted cells. So a ‘union’ of possibilities is different than in the temporal Memory. Is that correct?
Thanks.