Why materialists are predominantly materialists

[Chas]

Jump off a tall building.  Your landing will be convincing evidence. 

Not really.  My experience of falling, and my assumed subsequent lack of experience thereafter, tell me nothing about the underlying nature of reality.  There's no reason why you couldn't have unconsciousness or death in the Mind of God, the Matrix, or a brain in a jar.

And there is no actual reason to believe you can.