Question: does brain size matter?

Guido Bolognesi answered on 16 Mar 2015:

Do you mean the actual physical size of the brain?

If so, I have no clue. Scientists know very little about
how brain works and there are many scientists studying this
mysterious machine. To give you an idea, the brain of Albert Einstein
has been conserved till today to let people studying it in order to understand
what made him a genius and if there any physical feature which
made its brain working differently (and very effectively) than “normal” people.
I don’t think Einstein brain was bigger than “normal” people brain,
but I might be wrong. For sure it had more connections between brain cells.
If you think a brain as a road network, Einstein’s brain had more “roads”
than other people brains.