The world would be a better place if more people took career risks. The evidence is that the majority of interesting stuff was created by people taking big career risks, even though they're a minority of all researchers. So people who take career risks are more likely to create something great.
It sucks to lose at a career gamble but, at least in Silicon Valley, most people who fail but keep trying, end up doing pretty well.
Increasing risk alone does not increase the expected outcome of an enterprise, it reduces it. Risk is one important factor in the equations determining whether or not a business proposition like YCR's funding scheme is attractive, and for this reason the topic needs to be addressed. You are right that people who take more risks are more likely to create something great but the likelihood of a failure increases even more. Increasing risk therefore comes at a high price.
At the level of an individual increased risk does indeed reduce the expected outcome of an endeavor. However, societies where individuals are willing to take higher risks end up reaping the benefits that are only accessible by taking higher risks. One example of such benefits are scientific discoveries.
The current combination of risk-aversion and the focus on publications, tenure and positive results that permeates academia is antithetical to the uncertainty inherent in scientific research.
It seems to me that building new research institutions like YCR with a culture that resembles the one in tech which accepts and encourages risk-taking should be a priority if we are to continue to make progress in science.
Ha, the top comment was basically "not every industry is like Silicon Valley," and your response (among many others) is basically "life would be better if more industries were like Silicon Valley." Ok, that might be true, but it doesn't actually change the game on the ground today.
It's easy to say that "more people" should take career risks. It's harder to be the person who's spent their entire life striving toward a Ph.D. in the field of study they love, and face the (very real) possibility that they'll get one shot and that's it.
Even if they can land at a Silicon Valley company (not as likely for biomedical researchers, BTW), that's not their dream. Their dream was to do groundbreaking scientific research. That's why they got their Ph.D. instead of a job in Silicon Valley.
I don't think Sam addressed the commenter's concerns at all.
It sucks to lose at a career gamble but, at least in Silicon Valley, most people who fail but keep trying, end up doing pretty well.