(A)
I see that you are late as usual, in multiple ways.
The guy referenced work by neuroscientists:
Principles of Neural Science, by Eric R. Kandel and James H. Schwartz, 2nd edition, Elsevier, 1985.
And what did that 30 year-old source have to say on the subject ?
(B)
The source already said 10^15 when I got there.
It was I who edited it TODAY, to the correct approximation, 10^14.
That's as valid as me editing the account of the 1997 FA Cup final to make Middlesbrough FC 3-2 winners