For you created my inmost being;
you knit me together in my mother's womb.
I praise you because I am fearfully and wonderfully made;
your works are wonderful,
I know that full well...Psalm 139
Brain beats all computers
By Roger Dobson
14 September 2003
Forecasters who predicted that computers are poised to become more powerful than the human brain have got it hopelessly wrong.
For the first time, researchers have calculated that the power of a single brain in terms of memory capacity and discovered that it is greater than all the computers ever made.
While even the biggest computer has a capacity of around 10,000,000,000,000 bytes (10 to the power of 12), the human brain has a colossal 10 followed by 8,432 noughts, say the scientists who made the calculations in the journal Brain and Mind.
The researchers, who point out that memory is the foundation of natural intelligence, say that the size of the memory capacity of human brains has been a mystery until now because no one has developed the right mathematical models for working it out.
The number of neurons, or nerve cells, in the brain is known - around 100 billion - and many analysts have used this for the basis of claims that computers will soon be superior to the brain.
But the researchers looked beyond that and used a series of algorithms to work out the total capacity, including the huge number of different neural connections.
Ironically, the discovery could be used to change the way that computers are designed. Instead of adding more bytes, they could mimic the human brain, with more emphasis on connections.
Abstract of Original Full Article
Despite the fact that the number of neurons in the human brain has been identified in cognitive and neural sciences, the magnitude of human memory capacity is still unknown. This paper reports the discovery of the memory capacity of the human brain, which is on the order of 108432 bits. A cognitive model of the brain is created, which shows that human memory and knowledge are represented by relations, i.e., connections of synapses between neurons, rather than by the neurons themselves as the traditional container metaphor described. The determination of the magnitude of human memory capacity is not only theoretically significant in cognitive science, but also practically useful to unveil the human potential, as well as the gap between the natural and machine intelligence.
See Also:The Brain and the Computer
For original full article search: "memory capacity" on the site. Brain and Mind Journal
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