Devising a set of parameters that backtests 100% means nothing - there are an infinite number of parameters and models (or more accurately, algorithms) that can backtest any data set like this 100%.<p>In that sense, the math and "indicators" are just an obfuscated, custom-fit version of another algorithm that backtests 100% - if price[now] > price[now+1] -> sell else -> buy.<p>Rather than looking up the prices via array in the data, clearly "cheating", a set of parameters is hunted down that encodes that relationship in a number space. It doesn't mean anything more than the meme: 79 beers - your age + 40 dollars = the year you were born (which backtests perfectly as long as you were born after 1900).<p>That said, by all means, keep running the algorithm on new data every day and see how long it stays perfect. I'd be interested in the results.