Assume that a Martian lands in Denver on the wrong side of the tracks. He ends up in one of the ghettos and finds that the houses are run down, the kids not taken care of, the elderly in trouble, and the trees dying. He sees all these things, and discovers that there are people and organizations absolutely equipped and ready to solve every one of those problems. So this Martian asks, "What are you waiting for?" The answer: "We're waiting for money." "What is money?" the Martian inquires. "It's an agreement in a community to use something as a medium of exchange." Don't you think he may leave the planet believing there is no intelligent life here?