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Subject: AutoCAD

Author: Steven Edwards

Date: 04:08:53 02/18/04

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On February 17, 2004 at 19:33:52, Vincent Diepeveen wrote:

>Let's summarize the problems of it
>  - too slow
>  - too many functions
>  - difficult to read code thanks to the ((()))(())(()))((
>  - really slow
>  - even slower
>  - dead slow
>  - slow to program complex applications in too by the way

There's a nifty and rather complex commercial program called AutoCAD that's been
around for close to two decades.  I've used it professionally and have written
plug-in applications for it.  It is fast, and even on the hardware of the mid
1980s it chugged along at a decent pace.

AutoCAD is written almost entirely in Lisp and it made a bunch of cash for its
authors.  Its existence easily disproves all of your above stated "facts".

Could AutoCAD been even faster if it were written in x86 assembler?  Sure.  But
then its resulting complexity and cost likely would have meant that such an
effort would never have been started.

How many other similar application topics are there?   How about a chess program
that works at a symbolic high level instead of as a traditional A/B iterative
searcher?



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