Einstein joked about this http://books.google.com/books?id=U2mO4nUunuwC&q=%22I%20have%20made%20a%20great%20discovery%20in%20mathematics%22 http://books.google.c

Einstein joked about this http://books.google.com/books?id=U2mO4nUunuwC&q=%22I%20have%20made%20a%20great%20discovery%20in%20mathematics%22 http://books.google.com/books?id=U2mO4nUunuwC&q=%22I%20h... and Penrose have made an elaborate prank out of situation too, http://abstrusegoose.com/130 http://abstrusegoose.com/130. That said, notations here really correspond to different ways of thinking and are important and shouldn't be ridden.