This is how athletes can return from injury in a few weeks. It's also how most before/after shots for health products and supplements are made.
I've done GOMAD (Gallon of Milk A Day). It's tough to drink that much milk. In the end, I gained ten pounds of muscle over a period of two months.
Do you have a link to that by any chance?
It does make sense though. Perhaps that's what happened with him, but without that key bit of info it's fairly misleading.
Anecdotally, here's one guy's attempt at repeating the Colorado experiment. http://www.placeintheground.com/2008/07/21/testing-out-the-c... http://www.placeintheground.com/2008/09/25/colorado-experime...
Re-reading this makes me think that Tim Ferriss is probably advocating the Colorado Experiment's methods in his book. One of the other comments mentioned five-seconds-up, five-seconds-down.