Everything I was seeing in February for IFR was wildly inflated based on undercounting of infections from lack of testing. I’m curious what you saw that turned out to be correct.

Scientists and the WHO estimated the IFR to be around 1% in February. Most models that estimate fatalities use that number as well.

That estimate has hardly changed.

Seems highly unlikely, excess mortality is nearly 0.3% of NYC. You would need 150% of NYC to be infected to get to 0.2%.

Many seroprevalence studies with prevalence >5% also show that the IFR is in the region of 1%.

What is the basis for this best estimate?

It states that in the article.