Yes, but let's think about who is he?
To me Satan or God is all about what I am, a projection of Satan or God all about what I do to my other people, my family, relative, to the nature and to myself too. I contribute in making the world a safe for everyone to live the people will see God in me, and if I do opposite people will see Satan in me.

So Satan can only be seen to exist from what you do to people, to your family, to yourself and to the nature (the earth).