There is some truth to this. The objections in the comments (that also have some truth in them) fall into roughly 2 buckets:

- it's backwards: more rigorous universities can be so because they have better students;

- material covered isn't material learnt/retained;

1/n

https://twitter.com/quantymacro/status/1839307051350241372

I have some experience (from a past life) here from both sides of the lectern (math; from remedial algebra classes to all the way to the graduate level) as well as colleagues (past life) and friends at universities that fit the tiers being discussed.

My anecdotal opinion:

2/n