I stumbled upon this article Architecture's dying art on the http://washingtontimes.com/..."A computor wants to make a shape or a box. It can't be fluid" This is a statement is only truth for a PERIOD because of technology advancement this handicap will soon be resolved. But I do agree that sketching does forces you to slow down and really seek the sense of discovery. Sadly sketching is really a dying art and these days most of the students would just present their play design sketches in computer aided dwgs & models.