Limits to Growth - What Does That Mean?

The authors of the book, Randers, Meadows, and the others basically said that the data given wasn't meant to be specific timeframes. The idea of the model was to get an overall general idea of the ups and the downs and the directions that these different variables would take over time. But by doing these continual updates to it, like you said, it is easier to see. Not only was there assumptions correct up to this point, but again, what does that mean possibly about our future?