Zhou Yi said, "What should I call you now?"
"Just call me D."
Mr. D's face was a rectangular display fixed on a metal skull, showing a waveform spectrum analysis diagram—essentially a visualization of audio signals, commonly found on audio equipment screens.
"How did Mr. Zhou come into contact with time?"
After posing the question, D interrupted himself: "Perhaps I should first talk about my own situation."
"In the Taishan Knight Order, everyone has different directions of exploration."
"I study time."
"There are many peculiar phenomena in the field of time, and the old humans had already accumulated quite a few discoveries. For example, the twin paradox, the Hafele–Keating experiment of 1971, where a plane carrying an atomic clock showed a deviation of 59 nanoseconds after flying."
