Here is where i'm personally less optimistic. I think until we have a form of unlimited resource, extremism isn't going away. Jihad extremism is working hard to isolate muslims from the rest of the world, for example, which helps them recruit more extremists.
Most revolutions and war tends to come from a lack of resource, or a demand higher than the supply. That's the number one thing that needs to be addressed, I'd say
Lack of resources requires thought and creativity to work and effort until the nations
Good point, totally agree