Sure -- a real rewrite would be fine. Porting from, say, C++ to Java probably wouldn't be. (At least I wouldn't found a company on something that potentially

Sure -- a real rewrite would be fine. Porting from, say, C++ to Java probably wouldn't be. (At least I wouldn't found a company on something that potentially shakey.) I think the point that you're getting at, and I wholeheartedly agree, is that if you understand how something works in and out that rewriting it isn't a big challenge.