The PAC learning framework provides a formal way to quantify the learnability of a concept class.
我曾经以为世界是按部落划分的。然后我以为它是按贫富划分的。然后我以为它是按愚蠢和聪明划分的。但现在我知道它是按活着的人和死去的人划分的。
Be yourself; everyone else is already taken.
Take an object. Do something to it. Do something else to it.
Writing is an act of resistance against forgetting.