I think Ed has put his finger on the problem with that article. But I would say the ideas expressed there have a place in generating new thoughts or as just a mental exercise to free your mind. But as Ed implied what is the good of an idea if you cannot bring it into the real world? That is the real test of this method of thinking.
De Bono has a interesting new method to generate free thinking ideas too, but more problem centred. Can't remember what its called though, sorry.
