timothy from the offer-them-cookies-but-watch-the-bowl dept.
Shlomi Fish writes "The best way to react to people trolling on Internet forums is not to feed them, right? Wrong! 'Don't feed the trolls' is also usually ineffective. Luckily, however, there is more effective approach, inspired by the book Feeling Good by David D. Burns."
Every nonzero finite dimensional inner product space has an orthonormal basis.
It makes sense, when you don't think about it.