Can't edit: the 1.5x was wrong. Assuming no one dies, if every couple has 1 child, population would approach a limit of double its initial level. Since some wi

Can't edit: the 1.5x was wrong. Assuming no one dies, if every couple has 1 child, population would approach a limit of double its initial level. Since some will die in accidents, you could have slightly more than 1 child per couple without unbounded population growth.