Analytics-business interaction Know your data 31: Wordle, and NYT Kaiser looks at the fuss behind Wordle tracking for advertisers.
Aggregation Know your data 30: everything's ok until it happens to you Kaiser muses about Elon Musk and his flight log.
Covid-19 The shift to antibody testing is a choice of death over life Kaiser looks at the ins and outs of antibody testing.
Algorithms What's wrong with this data? Kaiser Fung (Numbersense) invites readers to help decide whether the data are fake, using a Yelp account as an example.