Hey Paul, there is simply no room to back his claims with evidence in a letter to the editor.  It's not the place for that kind of writing, so you shouldn't expect such writing. Also Paul, philosophy will never be a science. It's not even one of the specious social sciences: philosophy is one of the liberal arts. Philosophy doesn't progress and it's hardly informed by science. Philosophers are still arguing about the same things the Ancient Greeks wrote about over 2000 years ago. Go ahead and insult all philosophy professors because you don't even know what philosophy is, so why would anyone listen to you?