Quant at Jane Street kills 97 out of every 100 strategies it builds. That body count is the edge.
Not the 3 survivors. The 97 corpses.
The faster you falsify garbage, the faster you reach the one idea that isn't.
Retail runs this backwards - finds one setup, gets emotionally married to it, and rides it down 40% over six months defending it like a religion.
Run the kill-loop yourself with Horizon -> https://t.co/pDDYFGfVga
Type an idea in plain English. Horizon parses it into entry/exit logic, position sizing, risk rules.
Backtests 5 years of tick data in ~12 seconds. Runs Monte Carlo across thousands of simulated paths.
Deflates Sharpe ratio for the number of trials so luck can't sneak through. Spits out a cold verdict: dead or alive.
Kill it. Type the next. 50 ideas before dinner.
That loop cost $25K/year and a quant desk. Now it's a sentence and 12 seconds.
The edge was never having ideas. It was murdering them at scale.
Save this. Test 50. Keep 2. Kill the rest without mercy