Instead of regurgitating an old chestnut: "thermodynamic limits impose a cap to energy growth lest we cook ourselves. I’m not talking about global warming, CO2 build-up, etc. I’m talking about radiating the spent energy into space."("Exponential Economist Meets Finite Physicist", http://physics.ucsd.edu/do-the-math/2012/04/economist-meets-...)

Essentially, even if we have exponential growing access to resources, we'll still be facing earth BBQ circa 2400.