Putting themselves in the "Children of the Universe's" shoes, it really was stifling that the mighty Children of the Universe had actually been overthrown by a group they saw as insects.
But as they listened to the Four-Dimensional Lifeform's account, humanity still had some questions, so they asked, "Back then, were all the ones who fought our ancestors Cosmic Civilizations?"
"Yes!" the Four-Dimensional Lifeform replied. "If they had not reached the level of a Cosmic Civilization, how could they have opposed us? And how could they have crossed hundreds of millions of light-years across the Great Universe to fight us?"
Humanity still did not understand and continued asking, "The universe is so vast. Even a Cosmic Civilization would find it difficult to cross the boundless sea of stars and launch a war on such an enormous scale, right? A Cosmic Civilization's flight speed is only so much. How could they have come from the Unknown Universe?"
"Why couldn't they?" the Four-Dimensional Lifeform asked back curiously, then seemed to realize something and pressed, "Wait. Could that war have smashed the universe apart? Impossible. Although Cosmic Civilizations and we could both modify the laws of physics, the Great Universe has a self-repair mechanism. How could it have been damaged? That doesn't make sense. Right, within the Great Universe now, how fast can those Cosmic Civilizations travel?"
Faced with this question, Human Civilization replied cautiously, "About three thousand times the speed of light. Technological civilizations call that kind of navigation technology Warp Speed Travel!"
"What? Only three thousand times the speed of light?"
"Yes. Could it be..."
Humanity also realized where the problem lay. Warp speed back then had been faster than it was now, and it might not even have been due to technology, but caused by environmental factors in the Great