Want to become a billionaire? Help a billion people. - Peter Diamandis

There are now more than seven billion people on the planet. If trends don’t reverse, by 2050, we’ll be closer to ten billion.

Even when there’s automation, this doesn’t always create the dire results we expect. Consider automatic teller machines (ATMs). When they were first rolled out in the late 1970s, there were serious concerns about bank teller layoffs. Between 1995 and 2010, the number of ATMs in America went from one hundred thousand to four hundred thousand, but mass teller unemployment wasn’t the result. Because ATMs made it cheaper to operate banks, the number of banks grew by 40 percent. More banks meant more jobs for human bank tellers, which is why bank teller employment actually rose during this period.

novel The Diamond Age: Or, A Young Lady's Illustrated Primer, author Neal Stephenson gives readers a glimpse of what AI experts call a "lifelong learning companion": an agent that tracks learning over the course of one's lifetime, both insuring a mastery-level education and making exquisitely personalized recommendations about what exactly a student should learn next.