the average is the only thing that matters On Sat, Jul 23, 2016 at 6:02 PM, Joscha Bach < _I> wrote: Am 23.07.2016 um 04:41 schrieb jeffrey E. <[email protected]>: Cells seem to be mostly indistinguishable (except for XX), I thought? Size is different on average, but males with small brains are still male. Variation of all traits is higher for males, so there are more high IQ men (wider bell-curve). Given average brain size difference, the small difference in average IQ is surprising, I think