Sample size is too small and correlation does not equal causation are the worst. Teachers did a great job teaching those things, but sometimes correlation does

Sample size is too small and correlation does not equal causation are the worst. Teachers did a great job teaching those things, but sometimes correlation does equal causation or at the very least is interesting enough to warrant a closer look rather than to be dismissed so easily. At the same time, a sample size of one is good enough to prove something in a scientific way. If I claim to know the lottery numbers, I can prove it by winning the next lottery. In doing so I beat 1 to 5 million odds, which are greater than the 1 in twenty that most studies require.