PJ is not claiming that they [i]are[/i] data or illusions, simply that they are possibilities alone with MANY other potential explanations. Again, this is Kingdom Hearts and so many different forms and lookalikes and returns have happened and every time it is explained in a new way. What a character says may not be the entire truth. Who's to say Strelitzia isn't just assuming it's the afterlife simply because she remembers being struck down? Nothing is a guarantee at the moment and we know nothing about Quadratum and won't until KH4 is out. No need to be dismissive of someone wanting actual speculative discussion before the game releases rather than taking things at face value, which the Kingdom Hearts series is rarely known for