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Massively Parallel Computer Built From Single Layer of Molecules - Technology Review →
Directly out of Stephen Wolfram’s “A New Kind of Science”
They draw the relation of massive parallel computing to a brain and how its so much faster than a modern day CPU. The brain’s computations are based on these cellular (not as in neuron or living cell, just a term to describe a specific bit, a cell can be on or off) automata.
One of my favorite XKCD’s:

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