A passage I came across recently amused me and I wished to share:
A mathematician, a physicist, and an engineer are riding a train through Scotland.
The engineer looks out the window, sees a black sheep, and exclaims, "Hey! They've got black sheep in Scotland!"
The physicist looks out the window and corrects the engineer, "Strictly speaking, all we know is that there's at least one black sheep in Scotland."
The mathematician looks out the window and corrects the physicist, "Strictly speaking, all we know is that is that at least one side of one sheep is black in Scotland."
The above is a minor adaptation of a joke found in the novel The Curious Incident of the Dog in the Night-Time. I adapted it to fit my audience (I know a lot more physicits than logicians nowadays and so-called engineers to economist).
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Susan Potter
Quant
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I spent the first half of my career building risk models and market data infrastructure at BNP Paribas, Bank of America, and Citadel, then fourteen years shipping production systems at scale. Now I bring both sides to quantitative trading. If you're a trading firm, family office, or fund looking to tighten the connection between your research ideas and your production trading systems, whether that's building validation pipelines, formalizing signal logic, or getting microstructure analytics into a deployable state, I'd like to hear what you're working on. Reach me at me@susanpotter.net.