In my youth I used to go to the dog track. A friend of mine noticed the 1-2-8-7 dogs came in as the first 4 a lot. He bet a "1-2-8-7" box superfecta on them and won $3000. He continued the same strategy and then lost almost $8000 before he quit.

This is black box trading. The computer sees patterns and plays them. Since they do not in any way understand any fundamentals that may have influenced those patterns nor any potential catayst that could propel it one way or another, eventually they get burned.

My mentor taught me a trading pattern is valid until it is not. The wise ones recognize and change. The dumb ones lose everything and wonder why they were robbed. Black box trading is blind.

I also learned that black box trading kills short term traders, but a long with patience often will benefit from them in the end. The PPS sucks right now and is likely to get worse, but if we are patient and believe then we will be rewarded many times over.