I think that it would sooner be the rukers putting pressure on the populace (through various propaganda campaigns) that will make this a reality. Still, there

I think that it would sooner be the rukers putting pressure on the populace (through various propaganda campaigns) that will make this a reality. Still, there is a nonzero chance of civilization being destroyed by external forces, like a proper supervolcano or a massive asteroid. We should pursue both making the earth better AND colonizing different worlds.