Random questionable ideas

This semester I'm attending a seminar on "Our Amazing Brain".  So far I've been less than impressed by some of the ideas put forth by our class coordinator.   I hope I just misheard or misunderstood what he was trying to say.

1.  There is a facial recognition portion of our brain.  It is located close to the area responsible for recognizing color.  This has the effect of making it more difficult for white people to differentiate and recognize people of of color .  The reverse is also true.

2.  People who write left-handed have more difficulty writing continuous, coherent sentences because their writing hand obscures what has just been written.  This prevents the brain from coordinating the new thoughts being written down with what is already on the page.  Of course, this is all now meaningless since no one writes with pen or pencil anymore.

3.  Several important civilizations chose to write from left to right because it was easier to read what was written as it was being written.  Among these forward thinking civilizations was ancient Greece who made the change in two steps.

Comments, anyone?  I haven't been able to find a shred of evidence for such ideas.