> Really focusing on stretching yourself necessarily means lower grades.
I'm reminded of a saying/trope (whatever) I've seen in reference to surgeons and lawyers (I'm sure it's also been used in TV and movies). But the trope is that someone is looking for an expert and will be talking to a bunch of hotshots (let's say lawyers). They'll be bragging and then asked if they've ever lost a case, to which they proudly declare they have a spotless record. To which the person responds: then you've never taken a single risk.
It's overly dramatic, but I think gets the point across in an easy to understand way. It's exactly why you see the lower grade ones tutor the high grade ones (this even happened in my undergrad and I did physics[0]).
It's because learning happens when struggling. It happens at the edge. This is also a big reason some learn a lot faster than others or even why someone will say they don't understand but understand more than someone who says they do (and who believes it). Because expertise isn't about the high level general ideas, it's about all the little nitty gritty details, the subtle things that dramatically change things. But a big concern I have is that this is a skill to learn in of itself. I think it's not difficult to recognize when this skill is learned (at least if you have) but it's not something that'll be learned if we focus to much on scores. After all, they're just a proxy. Even the institutional prestige is a proxy (and I have an argument why it no longer matters though it did decades ago).
I do wonder if this is in part cause for the rise in enshitification. Similarly if this is why so many are bad at recognizing issues in LLMs and ML models. I'm sure it is but not sure how much this contributes or if it's purely a confounding variable.
[0] when I signed up to be a tutor at my university I got signed off my the toughest math professor. When I took the signature to the department the admin wasn't sure if I was trying to trick her because she immediately called the professor to confirm the signature. Then told me I could tutor whatever I wanted because I was one of two people he had ever signed off on. Admittedly, I'm sure a lot of that was because people were afraid of him (he wasn't mean, but he wouldn't let you be anything less than the best he thought you could be)