“Consider this thought experiment: if Portugal has higher levels of human welfare than the United States with $38,000 less GDP per capita, then we can conclude that $38,000 of America’s per capita income is effectively ‘wasted’. That adds up to $13 trillion per year for the US economy as a whole. That’s $13 trillion worth of extraction and production and consumption each year, and $13 trillion worth of ecological pressure, that adds nothing, in and of itself, to the fundamentals of human welfare. It is damage without gain. This means that the US economy could in theory be scaled down by a staggering 65% from its present size while at the same time improving the lives of ordinary Americans, if income was distributed more fairly and invested in public goods.”