100% rational? Tell that to the Mayans and the Easter Islanders. Please at least read the David Price essay, "Energy and Human Evolution" which is linked in my original post. It shows why the collapse of industrial civilization, and subsequent die off, is actually inevitable, due to the eventual depletion of the energy resources on which it depends. We are not different than any other life form on earth in this respect. How could it be otherwise? ---FutilitistPlease Register or Log in to view the hidden image!