James195101 wrote:I think that 'two people playing tennis being watched by a few spectators' proves there is a reality. Each player and spectator has their own reality, but the little bit of external reality being hit back and forth demonstrates that there is something beyond the internal realities - the tennis ball at least, otherwise it could not be hit back. As long as they all agree on the result, it is fanciful to imagine that they are all dreaming.

This maybe a little late in the game, but I'm unclear as to whether this reality that is unprovable is supposed to be physical or non-physical, and whether there is a difference.

I think spinning wheels about different perceptions perceiving different things does not prove that the physical world and self do not exist. They do, I think, logically confuse, because, empirically, the observer needs to show that said reality exists. If the self needs to show "reality," he or she will only show the reality they know.

However, like the quote here, the proof is in the agreement. In this agreement, each person can perceive differently and others either agree that it is fact or not. Some, like me, are so off the radar sometimes, that very few agree.