Notes on verification, execution, and what actually happens when you let an agent near a codebase that matters.https://www.quantefakt.com/enhttps://www.quantefakt.com/blog/the-edge-is-not-in-the-strategy-from-the-video/https://www.quantefakt.com/blog/the-edge-is-not-in-the-strategy-from-the-video/Put the rules from trading videos through a backtest, exactly as presented, and a few hold. Most show no edge at all — and the ones that look best on thin stocks lose the most once the cost of trading is real.Mon, 28 Sep 2026 00:00:00 GMThttps://www.quantefakt.com/blog/two-winners-on-camera/https://www.quantefakt.com/blog/two-winners-on-camera/An opening-range fade from a popular trading video, tested exactly as presented across nine years and every stock in our test universe. The video shows two winning trades. The test shows a coin flip.Mon, 28 Sep 2026 00:00:00 GMThttps://www.quantefakt.com/blog/read-easy-beats-write-fast/https://www.quantefakt.com/blog/read-easy-beats-write-fast/For twenty years Java lost on being slow to write. A model now writes it as fast as anything else — and what is left to choose a language on is how easily it can be checked. That contest Java wins.Thu, 10 Sep 2026 00:00:00 GMThttps://www.quantefakt.com/blog/we-handed-the-agent-the-answer/https://www.quantefakt.com/blog/we-handed-the-agent-the-answer/Give an AI agent the exact command to run and it still writes its own. It does not copy — it generates from scratch, and a strong enough habit beats the answer in front of it. The concrete case, and why jawata refuses instead of reminding.Tue, 08 Sep 2026 00:00:00 GMThttps://www.quantefakt.com/blog/parity-is-not-a-claim-it-is-a-number/https://www.quantefakt.com/blog/parity-is-not-a-claim-it-is-a-number/One time source, a real matching engine instead of a slippage guess, and selection that is bit-exact against the simulator. The same discipline, pointed at trading.Thu, 27 Aug 2026 00:00:00 GMT