Tag Archives: long reads

The Wild Prologue

Semigroups are like groups but semigroup elements don’t always have inverses, necessarily. Semigroups obey the associative law: a then b, then c       =       b then c, after a. but not necessarily the commutative law (3+14=14+3). Aristotle observed … Continue reading

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Utopia. Class struggle. Liberty. Tyranny. Property. Natural law. Human rights. Rousseau, Locke, Paine, Plato, Spinoza, The Federalist Papers, Marx, Rawles, and the rest. What is a “good” society and how can “we” make our society better? For me there was … Continue reading

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Vector fields

Vector fields pervade. I think about them every time I throw a frisbee in wind. In a social context, I think about vectors of intent attached to people talking at a party — vectors of flirtation, vectors of eye movement … Continue reading

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Radiolab got it wrong

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Do-It-Yourself MFE

or, The Reading List That Will Make You Rich. What follows is very much a field report of one particular DIY Masters in Financial Engineering. That brings drawbacks (like idiosyncrasy and personal narrative) — and advantages (I’ve actually read the … Continue reading

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Circles

A circle is made up of points equidistant from the center. But what does “equidistant” mean? Measuring distance implies a value judgment — for example, that moving to the left is just the same as moving to the right, moving forward … Continue reading

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Half a Year of Blogging

I’ve been writing for half a year now. It’s been an instructive and fulfilling experience. I’m a little better than I was in June. Writing is hard. Not being pedantic writing about math is hard. Concision is hard. Here are … Continue reading

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