Friday assorted links
1. SinoVac vaccine looking pretty good, and 300 million doses already sold (NYT). And Pfizer-Biontech seems to work against the South African strain.
2. “Marginal-utility neglect.”
3. Covid in Zambia.
4. Alex redux: why do experiments make people uneasy?
5. Cocanha.
6. Sperm markets in Covid times, and disintermediation (NYT). Recommended. But a 1400 chess rating is nothing to boast about!
7. Angry people are more vulnerable to misinformation — Serenity Now!