"vomit" maybe isn't the best word. The point is they are able to in their head: compose the program, notice bugs, fix those bugs, possibly tweaking the design

"vomit" maybe isn't the best word. The point is they are able to in their head: compose the program, notice bugs, fix those bugs, possibly tweaking the design in the process. Basically, they can prefect the design in their head and fix a lot of bugs all before starting type.