Suppose that something like the classical utilitarianism of Jeremy Bentham, were true. I don’t think it is true. However, consequentialist reasoning dominates most policy analysis and discussion, and consequences must play some role in any plausible moral theory. That being so, it is useful to take an unflinching look at what a generalized version of utilitarianism would have to say about the duty of those of us now alive have towards future populations including those of the deep future.