lightbrite – It says somewhere (not sure where, but I think it’s from Chazal) that women are an “am b’fnei atzmam” “a nation unto themselves”. I guess that’s the source of the idea that men and women are from different planets. Which explains the language differences.
Just so I shouldn’t be misunderstood: this is NOT to be taken as a negative statement about women! No one says that our Nation is inferior to theirs. Perhaps it’s better (at least in some ways).