What we need to realize is that there is a world-wide market for health care in developed countries. Single payer systems in Europe and elsewhere are effectively subsidized by the chaotic health insurance market in this country, which allows providers, medical device manufacturers, and drug companies to charge much more here, which in turns allows them to give big discounts to the single-payer systems. So the hospitals won't go broke as implied in this article if the U.S. went single-payer. Medicare reimbursements would rise somewhat without a private insurance market, but not as much as private insurance is now reimbursing. In turn, single-payer systems in other parts of the world would likely  have to reimburse more. But the end result would be that it would be a heck of a lot cheaper than what we have now.