The most progressive way to fund such a system would be through an earmarked income tax, which would be more than offset by eliminating premiums and out-of-pocket expenses.

This is not the same as Medicare for all. Medicare is embedded in our market-based entrepreneurial private system, and therefore experiences many of the same inflationary forces, including having to deal with profit-maximizing hospitals and physicians' groups. Doctors' fees are skewed to reward highly paid specialists for doing as many expensive tests and procedures as possible. As a result, Medicare inflation is almost as high as inflation in the private sector and similarly unsustainable.

...the private insurance industry has managed to convince many political leaders, including progressives, that a single-payer system is unrealistic. But what is truly unrealistic is anything else. My greatest concern about the Massachusetts plan is that when it unravels, people will draw the wrong lesson.