I think it is some guy just trying to make a little money by putting a different miracle program out there. When get past 15 reps or so it turns weight-training turns into an aerobic exercise to your body, not an anaerobic. Let me explain this further. Anaerobic exercising with heavy resistance builds muscle muscle tissue. Aerobic training burns fat, blood sugar and sometimes your valued muscle tissue. What our guy here has done by mixing in the high rep exercises is basically added aerobic conditioning to your weight training workout. This theoretically will help define you since your fat burning potential would be increased from the high reps. I am a firm believer and it seems to be the consensus among most top bodybuilders today that your weight training should be heavy and for the purpose of building muscle. Use the bike or the treadmill for your cardio/ fat burning training. Basically my thoughts are heavy, lower rep weight training is for muscle building and low intensity cardio is for fat burning. Everyone trains for different reasons and to achieve different goals, but there is only so many ways to skin a cat. Honestly, in the last 30 years the basic principles behind weight training have not changed all that much. What has come along so dramatically is nutrition ,drugs and supplementation. The only thing that has really changed as far as opinions on weight training is the frequency and duration the sessions. Many of the guys of yesteryear were probably overtraining. Weight lifting goes back to one basic thing and that is the theory of “The Overload Principle”. Do a little more weight or another rep each session and logic says you have grown. If you want to get big all you have to do is train hard, eat like an animal, supplement properly (I don’t mean just vitamins), get plenty of rest and last but not least be consistent. If you do these things your will get big!