Data flows behind "secure" debit cards
Kaiser traces data around debit card transactions.
numbers rule your world
Self-checkout and fast passes
Kaiser blows up the myth of self-checkouts.
Predicting invariables
Kaiser wants Keynote to be smart.
What is AB testing? 2
Kaiser muses about the state of AB testing in 2022
What is AB testing: a 2020s view
Kaiser looks at the state of AB testing in 2022, part 1
Know your data 34: coming for your most private data
Kaiser reacts to news that hospital websites push personal health data to Facebook.