A different question: Is not the atomic indivisible of computing no more that a simple switch? A binary? Is there an equivalent for this in the human mind/brain? I suspect not but would like to hear from someone who knows more.
It is for the dominant computing paradigm currently in use, but that isn't a universal truth. As I understand it, we use binary logic primarily because it's more tractable for humans to think about and work with, not because it's the only option or even the best option in all cases. For instance there are plenty of analog computers in history, which are in some ways more closely related to biological "computers".