I do not agree, Autocad is the tool to make paper drawings, like a wordprocessor is used to make paper documents. I'm an Autocad engineer for 18 years so I know where I'm talking about. You don't sent an E-mail to client to sign the drawing which isn't possible by the way, you don't check drawings on you computer, you make a plot of it and check it on a table, if you use a monitor, you're missing too many points. You don't give a floppydisk to a carpenter to build your buildings, cause he don't has a laptop on the site to see you drawings. If a Cad-program doesn't has a possibility to make paper copies (plots in this case) it's useless. I've seen and used other very advanced 3D-design-programs, like solid edge and AD-inventor, but I don't use them anymore because of the crappy plot-interface, perhaps they improved that but 4 years it was worthless. I agree that autocad and other cad-programs can be used as way of communication between engineers and designers, but that's only true during the design process. When you have to realize your design, you have to deal with laymen who can only read paper drawings, including your clients. You don't make a set of digital contract drawings, people don't trust that, me including, even if it's completely secured.

-How can you improve things when you don't make mistakes?