Eric S. Raymond answer was: Be independently wealthy.
I have tried to reach billionaire philanthropists (Bill Gates, Steve Wozniak, Dean Kamen, Warren Buffet, and others) with the idea that there are very talented people around who have brilliant ideas (say for instance another Newton or Mozart) but are not financially independent to afford to work on those. Among good places to look for such talent is to identify and support important or promising open source projects and people behind them. But none of them bothered to respond.