我们不要从模型开始。我们要从数据开始。我们没有任何先入为主的观念。我们寻找那些可以重复数千次的东西。收敛性交易的问题是，你没有时间尺度。你说最终都会收敛。好的，那何时是最终呢？
We don’t start with models. We start with data. We don’t have any preconceived notions. We look for things that can be replicated thousands of times. A trouble with convergence trading is that you don’t have a time scale. You say that eventually things will come together.Well， when is eventually？
