Yes - the answer from "Glorfindel" is the important one. Another way to think about it: when you're inside a web browser, you're using "code". When you're ins

Yes - the answer from "Glorfindel" is the important one. Another way to think about it: when you're inside a web browser, you're using "code". When you're inside an airplane, or driving a car over a bridge, or at the top of any modern building, you're benefiting from someone having used "codes" to numerically simulate the material properties and dynamic responses of those systems, to increase your safety.