It brings to an example in my mind is that, I look at a city. In 10,000 years from now, if there's no humans left, there'd probably still be bunches of metal sticking out everywhere, and it'd look ugly - it'd be terrible. And animals, when they leave their home, 10 years later you don't see much, except for termites. But, you know, there's a big difference there, and we need to be able to respect what we're taking, but we should be able to put something back, or give less negative back.