For comparison, new the supercomputer being installed at Argonne Labs operates at 1 exaFLOPS and comes with no software. Collectively, my estimate above based on common google searches is 700 exaFLOP per second. Each neuron operates once every 10 ms or 100 times per second, or 700 * 10^15 or 700 quintillion operations per second.įurthermore, the chemical connection between neurons are effectively "analog", or floating-point, so the correct term isn't "bits per second" but FLOPS. How many nerves are in the human body? Even an estimate of 10^11 (100 billion) neurons times an average of 7000 dendrites or 7.0 * 10^4 connections is 7.0 * 10^15 (7,000,000,000,000,000) or 7 quintillion neural connections. You really need to include the entire nervous system's number of nerves to truly appreciate the processing power of the human neural network. The easiest way to estimate the number of neurons in the brain is to count how many are in one part of the brain and then extrapolate out for the rest of the brain’s volume. Posts with unsourced content may be edited or deleted. And apparently no one actually knows where the 100 billion number comes from 1 But research from 2009 2 has given us an updated estimate of 86 billion neurons. Want to improve this post? Add citations from reputable sources by editing the post.
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