It's hard to explain. I guess we thought that the world was infinite. You just had the idea that, well, it'd blow away in the wind, and that would be that. I

It's hard to explain. I guess we thought that the world was infinite. You just had the idea that, well, it'd blow away in the wind, and that would be that. It's obvious now that this isn't the case. Much like, I imagine, smoking was obviously fine, until it wasn't.