This is an article about 21 years old, that is/was copyrighted, but the pages it was listed on do not seem to exist any more.
I believe, this article contains some very important concepts worth of showing, so I take the liberty of pasting the article I downloaded 20 years ago here in the hope, I am not breaking any copyright laws. If it turns out, this is actually the case, I will delete the file immediately.
In the last 20 years significant progress has been made in the fields mentioned here. A number of the things imagined at the time of the articles writing have become reality by now. Maybe this could provide a little food for thought.
This is also an htm file.