I keep seeing people grossly overstating flu mortality (has there been any flu that significantly exceeded 0.1% in the past 50 years?), and grossly understating COVID-19 mortality, which appears to be near 2% at best, and possibly over 5% depending if you include the many unresolved cases as survivors or ignore them until they “resolve”.
Obviously, better care, new treatments, etc could change everything. Singapore seems to be the gold standard right now, but not enough cases to be statistically significant.
Re: “Has there been any flu that significantly exceeded 0.1% in the past 50 years?”
In the USA, the mortality rate for an “average” flu season is 0.2%.
The CDC uses statistical models to estimate the final mortality, so the margin of error is probably significant.
In the 1918-20 Spanish Flu epidemic - in the USA - the mortality rate was 2.5%.
The great killer was the “infection rate” - which was 30%.