Today's oddest factoid: There may be 7 billion humans on the planet, but by 2019 a species of tiny plastic people will outnumber even us: Lego figurines. Randall Munroe, the physics grad behind the webcomic xkcd, has compared Lego production forecasts with human population predictions to determine that by 2019, there will be nearly 8 billion tiny, yellow people around—up from 4 billion in 2006—a number that will outstrip the human population. It's all the more impressive considering Lego figurines have only been on sale since 1978, the Daily Mail reports.(Click to see why some of those Lego people may appear angry.)