The infamous pillowfight at the Planetarium last year showed that viral marketing, a healthy sense of fun, and interactive public games are all coming to Buenos Aires. In the States large games like this are not unknown. A great example is Cruel 2 B Kind, a new twist on the classic game of Assasins where you have to “kill” people (usually with squirtguns). The change here is that you register as a group and “fight” other groups by hurling compliments. Alliances can form. Etc. Etc.
Pillows are one thing and registering and showing up is another. I don’t know if Buenos Aires is ready for this but if anyone is interested in helping to organize this game like this, let me know.