Are our brains too big?

Noble Prizewinner François Jacob outlined a quandary in a 1977 lecture at the University of California :

“Although our brain represents the main adaptive feature of our species, what it is adapted to is not clear at all.”

This quandary remains, to this day, unresolved. But attempts to answer it have been made – by, amongst others, professor Konrad Fiałkowski in his article: Is Our Brain Too Big to Think Effectively? which was published in the journal  Current Anthropology Vol. 50, No. 2 (April 2009), pp. 247-249.
Also see
, from the same author :
Star City:Tales from Mars
Adam is among us
Homo divisus
Cyclic behavior of randomly growing digital structures in finite random environment.