Yeah, ONLY 880,000% <Question: If the contract is up go long the next day? If the contract is down go short the next day?>
I am not sure that is exactly right according to the article. For example, if you have a downtrend, then a very small up day, the contract may still close below the 2 MA? Not sure.
Take a look at it on a chart. If you don't have futures, just use the index. (In fact, I would use the index as the trigger vehicle even if trading the futures.)