AI Operator: The Real Work Is in Constructing Training Data, Not the Dataset Itself
joecole · x · 2026-09-04
Quoting a Jane Street Signals & Threads episode on alt data, @alexdong argues the most underappreciated part of AI is the talent and creativity behind constructing training data — comparing it to coaching an athlete struggling with a movement. Training only on the finished dataset means you've already missed the most important part; what remains is copycat work. Data engineering, like Jane Street's alt-data effort, is where the real value lies.
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