Interestingly, this kinda works out: Medicare spending is ~20% of US HC spending. So if we wanted to expand medicare to cover all HC spending we'd need to 5x t

Interestingly, this kinda works out: Medicare spending is ~20% of US HC spending. So if we wanted to expand medicare to cover all HC spending we'd need to 5x the tax. 2.9% * 5 = 14.5 or basically what the tax is in Germany. Obviously lots of caveats to that calculation, but it's a nice "in the ballpark" sanity check.