Wealthy Americans who benefit hugely from a system rigged in their favor react with hysteria to anyone who points out just how rigged the system is.

I admit it: I had fun watching right-wingers go wild as health reform finally became law.

Yes, over the centuries economic progress has reduced some gross disparities - modern Americans are relatively unlikely to simply starve to death (though it can happen), so in that sense the gap between rich and poor has narrowed. But the question isn't whether society is, in some sense, more equal than it was in 1900. It's whether it is radically more unequal than it was in 1970. And of course it is.

Are you, or is someone you know, a gadget freak? If so, you doubtless know that Wednesday was iPhone 5 day, the day Apple unveiled its latest way for people to avoid actually speaking to or even looking at whoever they're with.

Political figures who talk a lot about liberty and freedom invariably turn out to mean the freedom to not pay taxes and discriminate based on race; freedom to hold different ideas and express them, not so much.

These days, however, the main problem comes from the right - from conservatives who, unlike most economists, really do think that the free market is always right - to such an extent that they refuse to believe even the most overwhelming scientific evidence if it seems to suggest a justification for government action.

America's political landscape is infested with many zombie ideas - beliefs about policy that have been repeatedly refuted with evidence and analysis but refuse to die. The most prominent zombie is the insistence that low taxes on rich people are the key to prosperity.