Aneet Chachra - Surfing Flow for Fun and Profit (S5E4)
Flirting with Models
How to Build an Exact Replica of the Real World
When you start off as a quan, your temptation is to take like every piece of data you can find and shove it into your model. But even if you have perfect data, that's actually a lot less useful than you would think. It doesn't really tell you why somebody owns the shares, and what they might do if things changed. And really, like, that's the most important thing, because it's the marginal flow that sets the price. The way i think about it is, ike imagini. You take out an aerplane and you fly over los angeles, or any other big city. Some of those cars ther re going to be in parking lots or
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