| My speaking about my cartesian knowledge of my own subject experience is proof (to me) that my subject experience has physical effects. If there are any properties that do not have physical effects, that makes them unspeakable, unknowable, and unthinkable. We can have a conceptual category for these properties, but we can't place anything in that category, not even from our own subjective experiences. Type A Categories (that we can place things in): Physical Causes & Effects: Our reality. No Physical Causes but Physical Effect: True randomness Type B Categories (that we can talk about but not place anything in): Physical Causes but no Physical Effects: The Afterlife, The Future, Non-physical Elements of Consciousness Neither Physical Causes nor Physical Effects: Completely separate realities If we say that anything from Type B categories exists, then existence becomes a meaninglessly broad category. We can be wrong about whether something is Type B (say if we discover time travel), but nothing that is Type B exists. |