<p>Well, this conversation took an interesting turn. </p>
<p>I like dlo's comment, for I think it captures a lot of the spirit of the discussion.</p>
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What Ben means (correct me if I'm wrong) is that the material of Quantum Mechanics is not important to Econ majors, but the difficulty of the class trains their mind. It's like weight training for athletes. Athletes never have to lift weights in their sports (except wieght lifting of course) but it trains their muscles for their specific sports. Quantum Mechancis and Caltech's slew of advanced math and physics trains the brain for other subjects.
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<p>I can accept the weight-training analogy. In fact, I think it is a quite useful analogy. One could say that you are using a difficult class to train your mind. </p>
<p>The last 10 posts or so have been about the economics community, useful skills to be in business/banking, and so forth. I would invoke another one of Ben Golub's posts.</p>
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Doing quantum mechanics makes you smarter, and better qualified for complicated business analysis too.
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<p>I might buy some of that. When you couch education in that fashion, that is noncontroversial.</p>
<p>The problem is that Caltech doesn't just use those classes to train students' minds. There 's a subtle, yet tremendously important point to be made. Training people's minds is only one purpose. As Ben Golub has himself admitted, it seems that one of the other purposes of those classes is, basically, to flunk certain people out. For example, consider the quote of:</p>
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The graduation rate is higher for MIT students because they don't have to take the courses that account for most dropouts here (quantum mechanics and proof-based analysis and linear algebra).
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<p>Aha, so the truth comes out. The purpose of the class is not just to make some students stronger. It's also to make bad students to drop out. It's not just weight training - it's also about weeding. </p>
<p>For example, let's say that I go to Caltech and I want to major in economics, yet I flunk out because I can't pass QM despite the fact that economists don't really need to know QM. Now, again, is it useful for economists to know QM from a "mind-training" aspect? Of course it is. Do they need to know it? I don't think so. After all, I would argue that the majority of all Economics Nobel Prize winners never took QM. Yet here you are, potentially denying somebody an economics degree because he can't handle QM, when the fact is, QM is not necessary to become a good economist. Useful but not necessary. </p>
<p>Hence, I have no problem in recommending that econ students take QM. That's fine. But to make the granting of the economics degree contingent upon passing QM - you go too far. </p>
<p>However, all of this discussion misses the basic point that I've been making which is that I think there has not been a proper focus on those Caltech students who don't do well. We can talk about all those Caltech students who have done very well and that's great for them. But what about the ones who don't? What about the ones who come and really struggle? The prevailing attitude seems to be that they shouldn't have chosen Caltech in the first place, and so they're stupid and deserve to get screwed. That's a very flip and cold attitude. That's like looking at a bunch of maimed and dead soldiers and saying, well, they shouldn't have chosen to join the army and so they're stupid and they deserve to be maimed and killed. I think we have to be a little more compassionate than that.</p>