At The Awl, Russell Brandom talks about everything he didn't learn from having his genome sequenced. After taking 23andMe's personal genome test, Brandom learned that his risk for becoming addicted to heroine is 2.9 times higher than average, and that he's a carrier for hemachromatosis. But, he says, despite the occasionally useful result, it's hard to figure out what the significance of these tests really is.