But we know that the mathematics of normal distributions, on which Solvency II is based, bring a veneer of science that ill fits reality. Yes, normal distributions are easy, or easier to handle, than other probability distributions, but they do not reflect what happens in market crises, nor do they accommodate non-proportional reinsurance.
The  2  BIS central bankers’ speeches  quirks of the SCR calculation make this requirement an unlikely, unreliable tool to manage capital.