An update on the Falcon 9 first stage recovery via Twitter from Elon Musk: "Rocket booster reentry, landing burn & leg deploy were good, but lost hull integrity right after splashdown (aka kaboom)."
Looks like Musk fucked it up again. But that would never discourage you idiots.
Every nonzero finite dimensional inner product space has an orthonormal basis. It makes sense, when you don't think about it.