Says Gerald Edelman:
If we considered the number of possible neural circuits [in the human brain] we would be dealing with hyper-astronomical numbers: 10 followed by at least a million zeros. (There are 10 followed by 79 zeros, give or take a few, of particles in the known universe).
So there are roughly
12,500[10 followed by (1 million-79) zeros] times more neural circuits in a human brain than there are particles in the universe.
In a sense, books increase those neural circuits because one brain gets exposed to the neural connections in another brain. A library multiplies these connections again, and the web adds orders of magnitude more to the connections.
So: what happens next? I mean, what really happens? We’re just at the edge now.