“Backtesting software is more complicated than Claude thinks it is. There's stock splits, reverse splits, corporate actions. There's all sorts of things that can skew your backtests if they're not accounted for. And the first thing that Claude's going to do is, yeah, we can write a backtester, Jonathan. No problem. And then two months later, they realize they've got this big pile of technical debt that they don't even realize.”

…mistake I see or the most frequent mistake I see now is people using Claude to create their own backtesting software. So there's lots of backtesting software out there that works. And a much better approach is have teach Claude how to use the existing backtesting software. But the first way is that

because intuitively they probably have the or certainly intuitively on my part, I might have fallen into the same trap because I know it's good at making software. So why do you think it doesn't work?

I mean, unlike perhaps a non-technical founder who's building, you know, what they think is the next greatest to-do app, someone who's using it to build their own back tester is losing money.

Right.

Most almost certainly. Yeah. So they notice. It's not just technical debt, it's debt.