A massively multiplayer online... forecasting game: this is going to be Superstruct. I really like this concept, and have high hopes based on its parents, Jamais Cascio and Jane McGonigal.
It is supposed to start in the autumn, but:
Get a head start on the game. It’s the summer of 2019. Imagine you’re already there, and tell us a little bit about your future self. Where are you having dinner tonight?
I'll bite: I'm at home in Vermont, up in the mountains. My wife and I are eating foods we made ourselves, along with some few bits obtained from locals. Greens and potatoes from the garden, cheese from our goats, chicken from our flock, bread I made with local flour. Candles illuminate the scene, because we're conserving electricity, like everyone. But our children use Google-3d to interrupt us with questions, their "call" waking up the sleeping monitor. We use spoken commands and hand gestures to instruct the computer (partially in the house, partially in Siberia) to snarf stories about the event our children speak of.
Perhaps it's a bit warmer outside, compared with, say, summer 2008.