3 ms·

There are 100,000,000 neurons in the brain. It's not that many. A Core 2 Duo has 169m [1]. A neuron is connected to about 10.000 others. And how many computers

• tim333 13y ago
  Of course a Core 2 Duo has 169m transistors rather than neurons. Interestingly you can do a rough calculation of how much processing power would be needed to do the equivalent of a human brain and it's quite a lot. Hans Moravec calculates it a about 100 million million instructions a second ( http://www.transhumanist.com/volume1/moravec.htm http://www.transhumanist.com/volume1/moravec.htm ) based on the processing power required to fuctionally equal the human retina which is reasonably understood. A core 2 duo does something more like 2.7 thousand million instructions per second and so you'd need about 35,000 of them for brain equivalence. So you're talking in 2014 terms of a a top end supercomputer rather than a macbook.
• chongli 13y ago
  >There are 100,000,000 neurons in the brain. You're off by 3 orders of magnitude. Try 200 Billion[0]. [0] http://en.wikipedia.org/wiki/Human_brain#Structure http://en.wikipedia.org/wiki/Human_brain#Structure