Modality in Descartes’s Philosophy

Analyze modality in Descartes’s philosophy.

Is there a fundamental problem with Descartes’ proof of God’s existence and his subsequent argument that he can trust his clear and distinct perceptions? Explain in detail what this problem is and how it arises. Could Descartes convincingly argue that there isn’t any problem? Explain why or why not. The paper should be well-structured and clearly written.