With global trade and most of all the internet, we already have and need it. We have the WTO and the ICC, plus many _very_comprehensive trade agreements. I would honestly rather have that governed by a democratically elected governing body than whatever it is now.

I think the right to be forgotten in the EU is a very interesting case in this regard. To recap: the right to be forgotten is the concept that if someone is associated with something they don’t like in the news, they can make a request to be “forgotten” by search engines (yet not by the news sites themselves which I find a tad odd, but anyway). There was a later court case where someone had used a VPN to look up something and as such appearing to be outside of the EU, and the court ruled that even in that case Google wansn’t allowed to serve up those results. So, essentially, it is applied to people around the world. What happens when a country implements, let’s say, for instance, an anti-censorship law that forbids artificially removing or housing search results? Oops. This is the kind of thing we could use a global government for. But again, very great care has to be taken to ensure that it is a well functioning democratic system.