He just published the following Twitter thread, which I reproduce here without comment:

Today is the last day of my seven-day challenge to provide a current example of systemic racism in America. No examples yet, just conceptual takes.

One view is that racist people in a non-racist system creates "systemic racism." For example, the justice system is colorblind by intention, but not by outcome. The reason for different outcomes is assumed to be racism, but studies can't isolate that variable.

And here we have a new problem. If "look at the data" is an argument for ANYTHING, why are we having mass protests about police killing black citizens at a higher rate than other groups when the data says otherwise?

If you think the data says police are killing black citizens at a higher rate than other groups it is because you are not good at analyzing things. Which puts you in good company with 95% of the public.

Maybe 5% of the public knows the numbers you see in the media are INTENTIONALLY misleading. For example, if you think it means something that a higher percentage of the black population is killed by police, you are in the 95% who are being duped by data that is misleading.