A convincing argument that every single major technological innovation was to enable men to see more breasts. Fire; you can see breasts at night. Art; enabled people to draw breasts. Clothing; you don't appreciate seeing breasts the same if they are out there all the time. Domesticated beats of burden; you can travel longer distances to see breasts. Agriculture; no mote multi-day hunting trips away from breasts. Water transport; now water is no barrier to seeing breasts. Writing; allowed communication about breasts. The wheel; as per beast of burden. Printing; allowed mass production of the art. Photography; allowed you to see real breasts even if they weren't there. The telephone; enabled calling women to arrange seeing their breasts. Film; moving breasts!