It is quite an interesting show at times. I just wish it didn't assume man just vanished as if someone deleted him from the Earth's hard drive. I think it should have posited that we killed ourselves off somehow, which is most likely how it's actually going to happen. How they claim we killed ourselves off is up to them. Nuclear war, famine, disease, rioting, whatever. I think that's why I didn't watch it all that often, honestly.
But it does make you think on how short human history is in comparsion, and how little we will impact on the world if we aviod destorying it. One big global ice age and there wouldnt be much left to say the human race waz here.
All that crap orbiting the Earth is bound to stay up there for a while Especially the geo-synchronous stuff.