Everybody seems to agree that when your engineers understand the domain they are working on, they build better solutions. There is always some snake-oil salesma

Everybody seems to agree that when your engineers understand the domain they are working on, they build better solutions. There is always some snake-oil salesman suggesting your engineers either don't need to understand the domain, or there's a shortcut by which they can learn it. There isn't. And every generation seems to rediscover that truth and give it a different label.