Tell more and more people to read books. I know it's old-school, but that's how I got my most precious knowledge in the previous 3-5 years. Of course not from the mainstream writers...
Discussion
There should be nothing old-school about knowledge. Many develop their world views from a flood of memes, quotations, and posts. This gives them enough understanding to live in chronic argument with others, but not enough to consider complex questions around a topic. Anything worth understanding cannot be communicated with such concision. I have yet to meet a wise person who was not a voracious consumer of quality books