Education

Whether preparing others for the future, or just yourself, this is useful...
"The biggest job in today's information-saturated world is to give the child an armor against doctrine."

War

Bad news: money is controlled by people who use it for terrible, selfish things. Good news: money does not represent our resources, knowledge, or abilities. Which is why continuing its use is causing a lot of problems. Fortunately we can overcome such obstacles and limitations by building a resource-based economy. Otherwise, keep running the world on a primitive, arbitrary numerical value system that doesn't correspond to reality and watch this planet go down in flames.