Originally Posted by bergevinr
My atheist brother has brought up the difference between "the real" and what "exists," saying that what is real is anything that can be thought of but does not necessarily exist materially in space-time, while what exists must exist materially in space-time.
In defining the terms as he does, he apriori excludes God and the spiritual realm from existing. To take something apriori is just to assume it is true… without evidence. However, how can he just assume that God and the spiritual realm do not exist? What sort of evidence does he provide to show that God or the spiritual realm does not exist?
He seems to be doing this….
1. It must be true that only physical things exist
2. God is a non-physical thing
3. Therefore God does not exist
However… why should we accept 1.? The argument for 1. seems to come from the fact that thoughts are things we can think of, and are non-physical, and are not necessarily real. However, just because one thing (thoughts) are non-physical, and can be thought of, is not necessarily real, does that mean that everything that can be thought of and is non-physical is not real? Of course not. He has no argument at all.