If there is no one to experience an event, does it exist, that leads on to, Two men walking across Exmoor, chatting as they go, no woman is conscious of their existence, are they still wrong?
My missus says yes:-)
Does anything exist outside of our immediate sensory perception? All right, we know that if we go to the front door and walk a hundred yards down the road, then cross the road, we find the corner shop, but we all know how reliable memory is.
Yes, too many questions and no answers, what exists in the pause between the in-breath and the out-breath?
I think we probably have to sort out what reality is (not mundane reality) before we can work out the criteria for recognising it.
Sorry for waffling:-)