> There is the obvious problem that there is nowhere near that level of precision in anticipating the given level of risk for any individual getting a certain disease
This doesn’t matter at all, on account of the way variances from independent RVs add up. Look up the Bates distribution as an example. Variance over mean goes down as the square root of the number of independent RVs (insurees). That’s like half the point of insurance.
> was through the patchwork system of employee health plans,
These were the result of highly nonlinear tax policy during WWII, not the reasons you’re claiming.
This doesn’t matter at all, on account of the way variances from independent RVs add up. Look up the Bates distribution as an example. Variance over mean goes down as the square root of the number of independent RVs (insurees). That’s like half the point of insurance.
> was through the patchwork system of employee health plans,
These were the result of highly nonlinear tax policy during WWII, not the reasons you’re claiming.