that you are more mentally prepared when you hit the drafting table. You'd really thought this through a couple times and heck, you could turn the whole project over in your head while crossing the drillfield. Kinda like learning the language before you go to a foreign country or like being able to do the times table in your head is useful when going to the store.

But yeah, on the other hand, by analogy just the insert feature on word processing is gold, paid for the entire IT revolution right there. Used to have to do three drafts, 1st, corrections and updates, and then maybe one in good hand-writing. That's a lot of work so yeah you better have worked out what you want to say before you start.