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<p>This I would certainly disagree with. I doubt that any Harvard student could be a physics major just as much as I doubt any H student could be a spanish major. People’s brains are not all wired the same. A good deal of research supports this.</p>
<p>Your last paragraph is, I think, much more on the mark. Science is a lousy career for a lot of people, even a lot of Harvard alums. And engineering is not much better. And the work is hard, the average GPA for science and engineering majors is lower (this is WELL documented), so unless you love the disciplines, one can find easier ways to make a buck.</p>