Heya Tony—I am not expert in diabolism, nor would I wish to be, but from many learned sources (particularly Malachi Martin, S.J., deceased) I’ve garnered that it is futile to argue with the possessed. In fact, in exorcism, it is dangerous for a priest to even try, because of the supernatural intelligence he is dealing with. Indeed, without the power given him by Our Lord to act in His name, an exorcism would not only be futile, but dangerous spiritually and physically dangerous—extremely so—for the exorcist. Since this board in discussing a very real and extremely grave, evil topic, I think we should take his advice. Learn of the devil to fight him, to avoid him, to flee him, but do not fall into polemics that will surely delight him.
Also, this is not the place for discussing general biological philosophy and the conception of life. This topic is to deal with the Adversary, although, as I already stated, it is a testament to his ability that he immediately throws off a conversation of his nature with arguments on epistemology and polemics. Beware. This is not a topic to discuss flippantly.