I published My Secret Plan to: https://www.gwgh.com/technology

Background: My day job is running a space transportation company called SpaceX, but on the side I am the chairman of Tesla Motors and help formulate the business and product strategy with Martin and the rest of the team. I have also been Tesla Motor’s primary funding source from when the company was just three people and a business plan.

Source: The Secret Tesla Motors Master Plan (just between you and me) | Tesla