I'm no philosopher and haven't extensively read or studied any philosophers.
I've recently been reading up a little on relativism and what it means and I'm a little confused about to what it is supposed to apply.
From my reading relativism is that truth belongs to the observer and there is no underlying truth.
Is this applied to everything or just morality and ethics?
If it is applied to everything and Descartes is correct about self existence as a provable thing (I think, therefore I am) how can my own existence be subjective (Ie I have proved it via Descartes how can an external observer claim to the contrary)?