descriptive claim
When Jane Street evaluates a new model on historical data, it needs to distinguish genuine predictive power from memorization of past outcomes.
Unidentified speaker · Si Sheppard – How did a few hundred Spanish soldiers topple two empires? · 1 Oct 2026
In their words
The transcript segments this claim was taken from
“This matters because whenever Jane Street evaluates a new model on historical data,”
“they need to know that its performance reflects predictive power,”
“not just memorization of past outcomes.”Play from 21:48Report a misattribution
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97%confidence the claim was read correctly