Say you have a hundred thousand customers. Some of them won't pay you. You don't know which ones, you don't know how many, you just know it happens. That's uncertainty: an unknown outcome you can't put a shape on.
Wait long enough and the shape appears. Turns out about 3% don't pay, year after year. The moment you can attach a number, you've crossed a line. Uncertainty just became risk, and risk is something you can actually work with. Risk is quantified uncertainty. That's the entire trick.
Now you can act. You still don't know who the 3% will be, so you screen everyone at the door with something that predicts whether they'll pay. That already exists. It's called a credit score.
Here's the part people miss. The screen isn't really there to lower the 3%. It's there to keep it from swinging. One bad year without it and 15% of your customers stiff you and you're finished. The value isn't a lower average, it's a narrower range. You are buying down volatility, not bad luck.
And this is what every function in a business is quietly doing. Each one carries some error, and its job is to push that error down and keep it steady, because small mistakes that don't matter at ten accounts turn into real money at ten thousand. It's the same move as fitting a regression: you add square footage, then bedrooms, then bathrooms, not to predict the future perfectly, but to shrink how often it surprises you.
You are never going to beat uncertainty. You just don't want it running the place.