People who close window blinds on airplanes have lost the joy of living

By default, you should keep the window shades open so your row-mates can see out the window and the miracle of human flight. People can request it closed if they want to nap and it can be lowered if the glare is intense, but otherwise, I judge the shit out of you for closing the blind for ignoring how cool it is to look out of the window in an airplane.