A Fervent Defense of Front-running HFTs

In the good old days before the computer revolution, stocks were generally priced by traders using pencil and paper. Analysts would read news, study corporate financials, and then give ideas to traders. Trading happened in a physical trading pit. When a large player (Goldman Sachs, J.P. Morgan) wanted to ...

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Assorted links

A Fervent defense of Frequentist Statistics. Eliezer Yudkowsky's comments are also well worth reading. Most notably:

Who are these mysterious straw Bayesians who refuse to use algorithms that work well and could easily turn out to have a good explanation later? Bayes is epistemological background not a toolbox of ...

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Computerized Eye Exams

Bryan Caplan recently asked for one good reason why basic eye exams can't be done by machine. I.e., why a machine can't ask "better like this, or like that?"

Computerized eye testing is probably a little different than what Caplan imageined. The shopkeeper (not a medical doctor ...

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Why xkcd-style graphs are important

For most data scientists, a toolkit like scipy/matplotlib or R becomes so familiar that it becomes almost an extension of their own mind. When fleshing out an idea, we will just open up ipython, write a few lines of code, and display the plot on the screen to get ...

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