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<p>Well, to give an example – parties sound not so fun, I’m hard pressed to find an EC I’d like to do over sitting around, hanging out with people I know, or most importantly, doing some work.</p>
<p>If you’re in a major like mine though, you have not so much WORK you can be working on incessantly. A lot of the time, you’re stuck, plain and simple, and if you don’t give it a frequent rest, it’ll get to you, and you’ll make zero progress. If I were a poli-sci major or something, with mounds of reading, or a CS major with lots of code to write, different story. The solutions to math problems can be complex, but they’re not usually terribly long, and working 100% of the time actually seems to be not so good. Working <em>consistently</em> is more important than working long bursts of time.</p>
<p>I think this is a common thing to many college majors actually.</p>