That’s probably an extreme strategy, as if the prof actually had read the entire paper, he presumably would have gotten a failing grade. But the principle is valid. Put something in the paper that the prof would just have to notice and comment on if he actually read the paper. Put a joke in the middle, or a sentence of gibberish. If the prof makes no comment about it and makes no marks about it in the paper, he probably didn’t read it. Of course if he does comment on it, verbally or in writing in the paper, then he must have read it.
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