You could just as well say that if Jobs hadn't decided that Apple should build the LaserWriter, Warnock would have ignited the DTP revolution with another compu

You could just as well say that if Jobs hadn't decided that Apple should build the LaserWriter, Warnock would have ignited the DTP revolution with another computer company. GEM and Windows were nibbling at the heels of Apple already. Then you had Sun and others at the high end. PostScript was so advanced that it was further ahead of the competition in its field than Apple was in the GUI market.