I want to organize a party for the whole world for

I want to organize a party for the whole world for one or two days. All the participants try to have the perfect day. Nobody has accidents. Nobody is hurt. All is good, the food is good, the company is good. The aim of the party is to have a splendid time without fights. Do you want to participate in a psychological and social experiment? Is it possible or impossible to have a perfect day?. I am a psychologist and rational thinker and I help people survive. Thank you.