Brief explanations of some formulas or topics - appear when you hover over them.
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And one more thing. This isn't an academic article. So I thought I'd include some gifs. But which ones? Few people are interested in mathematics, and few understand it. But almost everyone is interested in philosophy, but no one understands it (including me). These fields are so different that I wanted to find some rather... strange gifs, perhaps? I found the ones I could.
