This is something that YC can help with, though. They have shown a willingness to be much less risk averse than the average VC, and are at least making an effo

This is something that YC can help with, though. They have shown a willingness to be much less risk averse than the average VC, and are at least making an effort to seek out long shots that probably would have trouble raising funds for a 10 year horizon project (such as SpaceX) on their own. YC can help a non-Elon Musk get started in the right direction for some of these projects, put in some money (both through YC VC and as angels), and help introduce these teams to the right partners at the right VC's for raising the right funds at the right time. This doesn't make it a sure thing that this will lead to more Tesla/SpaceX successes, but it can only increase the odds. Bravo.