I don't think you can really be a "freelance doctor" without any degree
You can't, but basically I'm wondering whether Thiel means that as the only reason why "the time and cost of four years of college may be worth it", or if he also thinks that the educational value justifies it.
Peter Thiel is offering another round of "20 under 20" Fellowships. The application deadline is December 31st. We know many of the current Thiel fellows here in the Bay Area, and it's a great opportunity. Here's the official letter from the Thiel Foundation: