Pseudo-Mathematics and Financial Charlatanism The Effects of Backtest Overfitting of Out-of-Sample Performance Download added – See more at: http://quantlabs.net/blog/2014/04/pseudo-mathematics-and-financial-charlatanism-the-e%EF%AC%80ects-of-backtest-over%EF%AC%81tting-of-out-of-sample-performance-download-added/#sthash.GyU1i934.dpuf