I got into the World3 model and its offshoots a few years back... somewhere online I found a JS implementation of the model that let you fiddle with the various

I got into the World3 model and its offshoots a few years back... somewhere online I found a JS implementation of the model that let you fiddle with the various inputs that the model was sensitive to. I don't remember the details, but I quickly discovered that one of inputs was extremely sensitive and would impact the model dramatically, and in the opposite direction that you would expect. I think it was something along the line of business growth - if you increased business growth just a little bit, the worst projections of the model disappeared.