Tony Horton's P90x vs. Occam's Protocol as described by Tim Ferriss in 4-Hour Body - a comparison of fitness regimes for muscle gain and fat loss. Presented at the Quantified Self 2011 Conference. For more information on P90X, please see http://wiki.dandascalescu.com/reviews/fitness/p90x_faq For more information on Occam's Protocol, please see http://wiki.dandascalescu.com/summaries/tim_ferriss_-_the_4-hour_body/from_geek_to_freak_-_gaining_muscle