The controls were anything but a hunch-player’s delight in a Universe composed of one-trillionth part matter to one decillion parts black velvet futi… - Kurt Vonnegut

A sum of money is a leading character in this tale about people, just as a sum of honey might properly be a leading character in a tale about bees.

That, in my opinion, was the most diabolical aspect of those old-time brains: They would tell their owners, in effect, "Here's a crazy thing we could actually do, probably, but would never do it, of course. It's just fun to think about." And then, as though in trances, the people would really do it — have slaves fight each other to death in the Colosseum, or burn people alive in the public square for holding opinions which were locally unpopular, or build factories whose only purpose was to kill people in industrial quantities, or to blow up whole cities, and on and on.

Trout, incidentally, had written a book about a money tree. It had twenty-dollar bills for leaves. Its flowers were government bonds. Its fruit was diamonds. It attracted human beings who killed each other around the roots and made very good fertilizer.