[YeGoblynQueenne]

>> He is saying neither. He is observing that OP has introduced the assumption that their brain is doing something that can't be done with matrix multiplication and is pointing out that there is no evidence to back such an assumption up.

Where was this assumption, about the brain and matrix multiplication, introduced? As far as I can tell, "the brain" was introduced to the conversation by mckirk, not the OP.

>> That seems like a highly suspect assumption.

Which one? Can you please quote from the OP's comment? You and the other poster are constantly bringing up things that someone is supposed to have said, but that nobody has said yet, in this thread, and it is very confusing.