Sounds reasonable to me. Consider where we were in year 1016 vs now, and the rate of change is increasing. If current trends continue, 1000 years seems long if

Sounds reasonable to me. Consider where we were in year 1016 vs now, and the rate of change is increasing. If current trends continue, 1000 years seems long if anything. Even without terraforming, large enough domes would probably be good enough.