Giving someone a heartfelt 'Happy Birthday' used to take effort. You'd have to go buy or make a card, find a stamp, remember their address, and actually remember their birthday. Facebook has changed all of that by constantly reminding you when every one of your friends is getting older. It's trivialized the standard 'Happy Birthday' post to your wall. But, it seems that Facebook wants to make it personal again with the ability to take a short birthday video so that your friend can know that you took 12 seconds to wish you a happy birthday, rather than the 2.5 that it takes to type it on a keyboard.