Laurie Voss on local reasoning for global properties

Laurie Voss wrote a piece on local reasoning for global properties. The idea is simple: if each small part of a system is well-designed, the whole thing tends to work. You don't have to prove the global property up front. You prove it by proving the local rules, and the global property follows.

This is the kind of thing that sounds like a theorem but is actually a practical rule of thumb. The author has been writing ai_explainer pieces for a while, and this one landed in that same vein — clear, grounded, no hand-waving.

Why this matters for us: the same principle applies to our own work. Write the small parts well and the big picture takes care of itself.