Overton Window-Society Changes-Cultural Changes-Frogs in Boiling Water

Society changes by forces both natural and forced. Behavior that was formally prohibited is now accepted. Inventions, discoveries and contact with other create cultural changes which create society changes. Overton Window was a classroom theory but is now a political strategy to change our nation. Remember when having a child out of wedlock was taboo? Men marrying men? People proud to be on welfare? Trashing American Flag in public? Who changed that?