Monday assorted links
1. How safe is it to fly? (Bloomberg)
2. What is the share of the population with preexisting immunity? Recommended.
3. And excellent David Wallace-Wells piece on the spread of herd immunity ideas and T-cell immunity (as more significant than had been thought) throughout the scientific community. Also recommended.
5. Male earnings in the U.S. do not show a general volatility increase over the last 30 years.