Brain and Mind
09/03/2018
Recently, a paper in the journal Brain and Mind attempted to estimate the capacity of the human brain using a model that treats a memory as something stored not in individual neurons but rather in the connections between neurons. The authors estimated that the human brain can store 10^8432 bits of information. By contrast, it's said that there are somewhere on the order of 10^78 atoms in the observable universe.
- Moonwalking with Einstein, Joshua Foer
Reference (Brain and Mind 4(2):189-198 · January 2003) link