It is a tenet of American economic beliefs, and an article of faith for Republicans that is seldom contested by Democrats: If taxes are raised on the rich, job creation will stop. Trouble is, sometimes the things that we know to be true are dead wrong. For the larger part of human history, for example, people were sure that the sun circles the Earth and that we are at the center of the universe. It doesn’t, and we aren’t. The conventional wisdom that the rich and businesses are our nation’s “job creators” is every bit as false. I’m a very rich person. As an entrepreneur and venture capitalist...