The Occamists using the Nominalist method separate theology from Aristotelian foundations, making them lose any possibility of presenting themselves as science, and reducing confidence in the power of reason applied to the demonstrations of God's existence and the immortality of the soul. They support God's absolute power that explains the contingency of creatures and the laws of nature. Divine omnipotence also includes the case that God can also comprehend a nonexistent object: an anticipation of the "deceptive God" a theme used by Descartes in solving the certainty of the cogito ergo sum.[2]