Those aren't (and aren't implied by the article to be) the only two options. Globalization could recede (or at least not progress); the Doomsday argument could

Those aren't (and aren't implied by the article to be) the only two options. Globalization could recede (or at least not progress); the Doomsday argument could be totally wrong (it's logically sound, but based on some strange statistical assumptions); or we could colonize other planets to a point that would both inoculate us against most extinction scenarios and create isolated genepools, just to name a few others.