Peter Thiel — American Businessman born on October 11, 1967,

Peter Andreas Thiel is an American entrepreneur, venture capitalist, hedge fund manager, and social critic. Thiel co-founded PayPal with Max Levchin and Elon Musk and served as its CEO. He also co-founded Palantir, of which he is chairman. He was the first outside investor in Facebook, the popular social-networking site, with a 10.2% stake acquired in 2004 for $500,000, and sits on the company's board of directors... (wikipedia)

If I had known how hard it would be to do something new, particularly in the payments industry, I would never have started PayPal. That's why nobody with long experience in banking had done it. You needed to be naive enough to think that new things could be done.
People don't want to believe that technology is broken. Pharmaceuticals, robotics, artificial intelligence, nanotechnology - all these areas where the progress has been a lot more limited than people think. And the question is why.
There's always a sense that people will do things quite differently if they think they have privacy.
Airbnb is undervalued.
A conventional truth can be important - it's essential to learn elementary mathematics, for example - but it won't give you an edge. It's not a secret.