Jack of Harts

The Fermi Paradox had many answers.  One was that the twenty first century industrial societies used so many resources to maintain their lifestyle that the Earth, and in fact the entire Terran System, could not possibly support us.  Many preached that resource exhaustion would lead to the end of civilization, and our ability to broadcast or travel to the stars.  What they failed to understand is that our ingenuity keeps on developing new ways of finding resources.