Noah's words left the experts surprised but curious. His speech made sense. An existing theory saw the birth of the magical beasts as the necessary price to pay for Heaven and Earth's control, so it didn't feel too unreal for those empty existence to fit in the same category.
Heaven and Earth's power made each of their drastic decisions create immense consequences in their world. The same could have happened to the existences that had once belonged to their system. The simple act of stripping them away from everything they had could have given birth to a law that went directly against the rulers.
Non-existence and non-energy were words that the experts struggled to understand. Even Noah found it hard to describe them after having his idea. After all, their entire knowledge came from beings that fed on energy. Having to classify creatures that did the exact opposite felt almost impossible.