Excel doesn't have unit testing or validation built in. That's my biggest problem in the world right now. SO MANY BIG THINGS in the world are running on random

Excel doesn't have unit testing or validation built in. That's my biggest problem in the world right now. SO MANY BIG THINGS in the world are running on random Excel sheets created by FSM knows who full of formulas and shit that have zero validation. ...and people are worried about "vibe coded slop" - at least that stuff is made with actual programming languages with unit testing frameworks. Nobody has ever went through an inherited Excel sheet can confirmed that every field in column CB has the same formula and no-one in the 42 people long inheritance chain has accidentally fat-fingered a static number in there.