Unlimited exponential growth is a horrible way to model anything. The real world has all kinds of limits, nothing can grow for ever. First those limits are goin

Unlimited exponential growth is a horrible way to model anything. The real world has all kinds of limits, nothing can grow for ever. First those limits are going to be soft economic limits, slowing the rate of growth. Eventually they become hard physical ones, making growth literally impossible. It won't be exponential growth, it'll be logistic. So the seemingly innocent "let's assume that this mathematical thesis is correct" is a pretty high bar. Unlimited growth is an exceptional claim, it needs exceptional evidence.