Thursday's broadcast of Good Morning America, Caltech physicist Kelvin Vereisen observed that, "Unless they're maintained by a steady stream of energy, systems gradually decline into disorder. We pour extraordinary amounts of energy into the global industrial system annually, but the cost of that energy is rising while its quality is declining. We should therefore expect to see an increase of entropy in civilization." GMA was immediately overwhelmed by viewer calls and emails. In recent months, a small west-coast think tank, Post Carbon Institute, has raised questions about the possibility of endless growth of population and consumption on a finite planet. "There are limits to growth, and humanity is colliding with them," according to Executive Director Asher Miller. The organization alleges that high oil and food prices and extreme weather are all symptomatic of growth limits. As if this weren't enough, legendary Harvard economist Justin Haymaker announced last week the conclusions of a blue-ribbon panel set up to analyze the causes of the current global economic crisis. "We found that money is not a substitute for energy," he said, "and that making debt grow faster than GDP in order to stimulate the economy just leads to a situation where nobody can afford to make payments and the whole financial system implodes." Asked whether further infusions of cash by central banks could prevent that implosion, Haymaker replied, "Yeah, for a while maybe. But real growth? Forget it. That's soooooo twentieth century." Republican presidential candidate Mitt Romney immediately criticized president Obama's new policy