a) An object in 2 dimensions can feel 2 dimensionally. It can only interact with other 2D objects (or 1D or 0D), and do it through 2 dimensions height and width. Rob is putting his hand directly on top of the 2D object, and "top" is not a word in the 2D universe. Unless Rob's hand goes through the 2D world (as his ring did) then nothing can be observed or felt.
b) Indeed, and that is why in this version it works out for the believer. However the possibility is still there that the "ring" did not exist, it was some 2D fluctuation or 2D shape shifter. Just because we know Rob exists doesn't mean the possibility of Rob not existing is erased from the 2D world. Like I said, he assumes he is correct in order to make his faith point. If he looks at it from the other perspective, his point leaves the believer wrong and deluded.
c) Not true. A 3D object exists on a 2D world just as much as it does in a 3D world. The only difference is that in a 2D world, 2D slices of the 3D object can only exist, rather than the entire 3D object at once. Likewise, a 4th (spatial) dimensional object would have some kind of 3D form in a 3D world.
b) Indeed, and that is why in this version it works out for the believer. However the possibility is still there that the "ring" did not exist, it was some 2D fluctuation or 2D shape shifter. Just because we know Rob exists doesn't mean the possibility of Rob not existing is erased from the 2D world. Like I said, he assumes he is correct in order to make his faith point. If he looks at it from the other perspective, his point leaves the believer wrong and deluded.
c) Not true. A 3D object exists on a 2D world just as much as it does in a 3D world. The only difference is that in a 2D world, 2D slices of the 3D object can only exist, rather than the entire 3D object at once. Likewise, a 4th (spatial) dimensional object would have some kind of 3D form in a 3D world.
