When I first understood it, I was evangelical about it, telling all of my friends in depth what I'd learnt - how it would change their world and The World for the better. Some of my friends got it and trusted me and verified it. Other times, I felt like a dodgy used car salesman - but it was a top of the line Porsche I was selling to them! That can be disheartening, but you can only do so much and ultimately only really affect yourself. So I keep learning about it and subjects connected to it, bringing them up occasionally in obtuse or indirect ways for them to have something to think about. When the time or pain point is right, you'll be there. More grease to your elbow, sir!