Ingenious ideas are rare, and only a small minority of people can come up with them. Larger populations will thus produce more technologies and ideas than smaller populations, and because the benefit accrues to everyone, it is better to live in a world with a larger population. The more humans exist on earth, the more technologies and productive ideas are thought of, and the more humans can benefit from these ideas and copy them from one another, leading to higher productivity of human time and improving standards of living.
