Comment by 0xbadcafebee

> Feedback from reality is always faster than guessing on the air

Only if you have no idea what the results will be.

Professional engineering takes parts with specific tolerances, tested for a specific application, using a tried-and-true design, combines them into the solution that other people have already made, and watches it work, exactly as predicted. That's how we can build a skyscraper "the first time" and have it not fall down. We don't need to build 20 tiny versions of a building until we get a working skyscraper.