It was impossible for him to not know about this era of sculpture!
These remnant sculptures were spread throughout many places in the chaos sea. No matter which parallel universe one was in, one could find similar ancient ruins. One could see how grand it was.
Furthermore, as a Supreme Saint who had crossed the multiverse, he understood the meaning of this more than many ordinary saints.
Spreading to every parallel universe meant that this used to be a multidimensional civilization, and its hands had reached to every corner of the universe. Or perhaps this was an ancient civilization before the universe became a parallel universe.
"If that's the case! The birth of parallel universes could be traced back to at least ten billion years ago ... This sculpture civilization also means that it was the most ancient civilization at least ten billion years ago!"
"As for me, I might be able to find some kind of great ancient opportunity in this universe?"