I'd like to add a quirk to that requirement. You have to be able to build something large and ship it (and maintain it). Anybody can continue to build and build

I'd like to add a quirk to that requirement. You have to be able to build something large and ship it (and maintain it). Anybody can continue to build and build and build and you end up with a really large codebase that's bloated/duplicated/buggy and that never work in production.