[chiefalchemist]

I was feeling the same thing. We have absolutely no context.

That said, I think it's fair to review the history if events, in a butterfly effect sort of way, as interdependent and each built upon the other. Could some other sequence have the same / similar ends? Of course. But let's not be so quick to say, "there are other planets similar to our own, we can not be alone." It's not only the planet but also the history.