Is it selfish to choose not to have kids?

People say 'the planet is full,' as if eight billion were a fire code violation. But human history is a story of Malthus being wrong, over and over, because he kept underestimating ingenuity. The carrying-capacity panics of the seventies predicted mass famine by now. Instead we feed more people better than ever. The problems we face are distribution and technology problems, not headcount problems. Treating human beings as pollution, as units of carbon to be avoided, is a bleak metaphysics dressed up as science. People aren't the problem. People are the only thing that has ever solved problems.