In some cases, a neural network may consider as many as a hundred variables before it makes up its mind.

ECONOMIST: The learning home

Our results suggest that a neural network of frontal lobe areas acts as a central bottleneck of information processing that severely limits our ability to multitask.

FORBES: Why Multitasking Gets You Nowhere, Fast

Mountain View's secret lab stitched together 1, 000 computers totaling 16, 000 cores to form a neural network with over 1 billion connections, and sent it to YouTube looking for cats.

ENGADGET: Google simulates the human brain with 1000 machines, 16000 cores and a love of cats

And although Yurke hasn't given up on DNA computers (he's working on a DNA neural network), he is excited about this use of DNA. Leonard Adleman is too.

FORBES: DNA May Make Computers, Not Run Them