What are you most optimistic about in the next 100 years? It can be political, economic, health, technology, anything - but I'd especially encourage tangible processes and explanations.
This is the Edge Question of the Year, which you can find
here. It's a great read, but it's mostly answered by those academics in the sciences, where this forum can expound more on concrete political and economic goals.
Note: Natedogg posted this exact same thread in the EDF, but it was a shame because no one decided to reply to it. Politics is a much more vocal place, so I thought I'd try anew.