"Master Turtle, what is the use of this Pangu Brain?" people curiously gathered around the ugly thing, "It doesn't have any combat capability! What's the use of its computing power?"
"Haha, you don't understand," the Turtle Immortal laughed heartily, "The future world will definitely be a world of computing power!"
"Calculation is the core of our Mo Sect! I'll test you: We have an inner camp of 720 steps, a middle camp of 960 steps, and an outer camp of 1200 steps, with three people—A, B, and C—watching the night. A patrols the inner camp, B the middle camp, and C the outer camp, each advancing south by 9 steps, A by 7, and C by 5. How many rounds does each complete to meet at the southern inner camp?"
This is a chase problem at an elementary level, yet few people of this era know how to calculate it.
The Turtle Immortal was somewhat perplexed: "You need to improve your arithmetic; otherwise, you might not even be able to compete with machines!"