1. runoff was ok for markup. enough for typesetting
2. ps invented for a readon. th failure of roff
3. so naturally we chose roff for web.
4. while pdf (ps zip) dominated, html sough to keep up
5. JavaScript 6, css3 HTML5 still can't do what ps did in 97
6. pixelsight/web-gl
7. inline ps
8. end