While speaking on Business Insider’s podcast “Success! How I Did It” Affirm CEO Max Levchin shared the story about how he started PayPal; Levchin moved out to Silicon Valley after starting a business that didn’t succeed and was sleeping on his friend’s floor; he saw Peter Thiel deliver a lecture and stayed after to chat with the then hedge fund manager; they met the next morning for breakfast and Thiel liked one of his two ideas, he decided to invest and that was the company that became PayPal. Source.