[ipaddr]

It creates bad outcomes where students retake classes in the summers as a profession and game the system.

It also puts you at a disadvantage if you come from an immigrant area or poor area where your 90% will not count as highly as someone with 60% from the richest areas with a trackwork of success.

It really punishes anyone not rich and locks them out of elite universities and pushes most of the poor out of average universities.

A single test where everyone can study and pass seems more fair than basing it on things that can be impossible to change like where you grew up

[trinovantes]

Said test can also bias against the poor depending on how it's created. It can ask questions based on subtleties that only private schools/tutors have the time to cover or on life experiences that only upper middle class realistically have experienced.

Neither system is perfect but I think the purely SAT approach creates too much unnecessary stress for high school students when there are other proxies for determining future success.