If you took the 200 biggest countries in the world and weighted them by population and laid their flags on top of each other with those weightings determining the opacity of each layer you would end up with a flag like this.
We know this because these guys decided to create a new global country – a one world government of sorts… look out conspiracy theorists.
This is one awesomely detailed infographic.
"Using a list of countries generated by The World Factbook database, flags of countries fetched from Wikipedia (as of 26th May 2007) are analysed by a custom made python script to calculate the proportions of colours on each of them. That is then translated on to a piechart using another python script. The proportions of colours on all unique flags are used to finally generate a piechart of proportions of colours for all the flags combined. (note: Colours making up less than 1% may not appear)"
