Question: How many gigabytes of storage does the human brain have?
Answer 1/31 kudos @
Here are some estimates of the storage capacity of the brain. The estimates are given in "bits"; use a conversion factor of 1 gigabyte = 8 * 10^9 bits to convert the estimates to gigabytes (in other words, divide by 8 * 10^9):
[#1] from John von Neumann in "The Computer and the Brain" (1958):
2.8 x 10^20 bits
[#2] from Paul J. Reber, Ph.D., Department of Psychology, Northwestern University:
2.2518 × 10^16 bits
[#3] from Robert Birge, Syracuse University, 1996:
2.6388 × 10^13 bits (between one and ten terabytes, with a most likely value of 3 terabytes)
"Most computational neuroscientists tend to estimate human storage capacity somewhere between 10 terabytes and 100 terabytes, though the full spectrum of guesses ranges from 1 terabyte to 2.5 petabytes. (One terabyte is equal to about 1,000 gigabytes or about 1 million megabytes; a petabyte is about 1,000 terabytes.)"
... which is about 10^13 to 10^16 bits.
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