The next day, Lu Zhou ended his research retreat and went to his office at Princeton Institute for Advanced Study.
As usual, his students were there.
When they saw Lu Zhou in front of the office door, they were all surprised.
Vera was the first to speak.
Her little mouth opened, and she said in an astonished tone, "Professor, your retreat is over?"
"I guess so…" Lu Zhou looked at Vera before he looked at Hardy, and he could tell everyone was surprised.
He then asked, "Why are you guys looking at me like this?"
Jerick murmured, "Because if you come out of the house, it means you've succeeded…"
Wei Wen said, "Which means you've solved the Millennium Prize Problem?"
"Nope, but I have made some in-progress results." Lu Zhou paused for a second before he continued, "But I'm not here to talk about that, I'm here to talk about the Collatz conjecture."
Qin Yue asked, "Annual Mathematics replied?"
