Reading this sentence.
Xu Yun was immediately intrigued, and began to read carefully.
"Previously, while researching gravity, I summarized and optimized some of Galileo's ideas."
"Some parts were solved very smoothly, but in other parts I ran into problems—a straight-up, very serious problem."
"Fat Fish, you probably know that Galileo believed there was no absolute frame of reference in the world, only relative ones."
"So, within an inertial system, it's impossible to determine the motion speed of that system through experimentation."
"But as I see it, time and space are two independent concepts, with no connection between them. Each possesses absoluteness."
"I believe space is absolute; by its very nature, it remains always the same and unmoving, unrelated to anything external."
"For this, I even conducted a barrel experiment to verify the hypothesis, specifically as shown in the diagram below..."
