Perhaps it's wrong to judge our outlook based on Youtube, but I have to suspect that what people put on there shows what people are thinking about, and if it doesn't exist on there already, they make it. If this is true, than a colossal failure of vision in our society is indicated by the near-total lack of stuff about Space Colonies on there, and in daily discussion. Click through to learn/see more. Or wallow in ignorance. Your choice, really.