Errr... did you notice, when you feed in the wrong data to a system engineering model, i.e.: 3,5% economic growth, infinite resources, limitless pollution, you always get a shiny bright future? While back in the real world, what you can see and measure is rising CO2 levels, species loss, degrading ore grades, faltering production, shortages, rising prices - all backed up by real numbers, from real studies. (See the links in my articles). I believe, my friend, the onus is rather on you to provide evidence that a) your inputs are correct, and b) the model does not assumes infinite growth on a finite a planet.