They claim to have invented a new type of diet and maintain that if you rotate your eating patterns, it takes a few days before your metabolism adjusts itself to those new patterns, and their  new dieting technique exploits this, to force fat burning to happen.

Apparently, the idea is not really about rotating your overall calorie intake but to promote weight loss by shifting the type of calories that you eat

Because your metabolism doesn't know how much food you'll eat in the future your body always burns calories based on your eating habits during the past few days because it assumes that you'll continue to eat in the same general way. 

Therefore you need to shock your metabolism by doing the opposite of what it expects  by not continuing to eating the same types of calories and meals for more than a couple days at a time, and they claim that you can lose a lot of weight by doing this. This is because by shifting the types of calories you eat, your metabolism will burn all of the calories eaten and it will then find the nearest available fat tissue and burn that too.

Their plan is based on having a diet menu that is shifted every few days and they suggest that, because this is something you've never tried before, this is why you've never been able to lose weight in the long term when dieting ordinarily.

In order for this dieting technique to work the plan requires that you eat foods which have been rated "Fat Burning Compatible", because the foods you eat must be easy to burn (so that your metabolism will burn them entirely and then switch to burning your fat tissue after that).

To make this plan simple to follow they have  created an online diet generator which automatically computes everything for you , and  gives you a tailor made menu each day, so that you don't have to calculate anything while shifting your calories.

They have called this new diet the "Idiot Proof Diet".

The idea is that the "Idiot Proof Diet" will constantly vary the daily menus to take in every possible type of calorie, constantly shifting from one type of calorie to the next, in order to ensure steady weight loss, and because everything is computed for you there is therefore no need for calorie counting or label reading.