> students freely contributed what would be considered conservative mainstream opinions without retribution Sure, but the presence of these opinions is not the

> students freely contributed what would be considered conservative mainstream opinions without retribution Sure, but the presence of these opinions is not the same thing as proof of a diverse, free-thinking environment. I shared unpopular opinions too—when I felt I could. It wasn't always easy to do so. The chilling effect is hard to measure because people self-censor and self-censorship is invisible. It's a bit hard to explain, but if we take your metric and extend it, you can see where it falls short: just because there are black students on campus doesn't mean they feel welcome or comfortable to share their minds.