They want to build a city-sized tent.
Amazing. This sounds perfect. Imagine never walking out of your door and encountering gale force winds and heavy rain, also it can be warm all day long.
Going back to the Millennium, instead of building a crap tent and put something inside it, we should have built a giant motherfucker over, say, Scotland. It would have been amazing! People would have flocked there without the constant fear of getting swept away in a gale or freezing to death.
This is what the future is all about. Fuck going to the moon or anything, if we all just club together and build a tent over the entire earth, everyone will be happy. It even beats global warming, as the suns rays can be reflected away from the ground by the tent-ish layer of the atmosphere.