THERE’S AN OLD JOKE: A man parks his car on a dark street and drops his keys while trying to lock the door. So he goes into a bar nearby to try to find them. It’s so dark on the street, he thinks, that he’s better off looking in the bar where the light is good. It’s a funny joke … or so we thought until we realized that all of us who study video games and learning have been in a bar for the last decade, looking for our keys.