What do you think about calorie shifting?

Now, we all know the law about eating less and burning more, right? But what happens when our bodies adapt to our caloric intake? We go lower right? But, we can't do this forever, because eventually, our bodies will adapt to the point where we're not eating enough food to keep our bodies going, let alone support all the exercise we're doing? So, how about calorie shifting? It's the idea where we continuously trick our body by altering our caloric intakes from highs to lows so that our body cannot adjust to the different caloric intakes. I'm thinking of trying Sunday(1700), Monday(2100), Tuesday(1700), Wednesday(2200), Thursday(1800), Friday(2200), and Saturday(1700). My weekly intake will be 12,200, which is a little less than the equivalent of 1,900 calories daily for a week. It sounds a little like the concept fat loss 4 idiots presents, but I've switched it so that you don't have to follow their strict eating plan, and you can adjust your caloric intake to your own body. What is your take on that? Has anyone tried it? What were your results?