Does scepticism of external world and sceptical on inner world of same level?
Like someone doubting external world doesn't exists, it is illusion or process or emergence by inner world, only inner world of mind and thoughts etc exists. And someone who doubting inner world of mind and thoughts etc like it doesn't exists, it is illusion or process or emergence by external world, only external world (or physical world) exists.
For example,
PHYSICISTS ARE STARTING TO SUSPECT PHYSICAL REALITY IS AN ILLUSION
Or scepticism about God's existence related to but distinct from external (physical) world.
Are both of scepticism has similar level of doubts, or of problem?
To clarify more,
Inner world of thoughts and feelings means, what we experience and feel from first person perspective. And sceptical of it, means being sceptical to claim that we are feeling something or we are really conscious or there is mental or first person feelings or experience.
Is there any special difference or both are same types of scepticism?