While Lu Zhou and Professor Green were reaching an agreement, a strange person appeared outside his office at Princeton Institute for Advanced Study.
The person hesitated before knocking and walking into the office.
"Is this Professor Lu Zhou's office?"
Vera stopped writing and said, "Yes, why do you want to find Professor Lu?"
The old man looked around the office as he said, "I need to talk to him… Is he taking time off today?"
"Nope," Vera shook her head and said, "but he left in the morning."
The old man asked, "Then can you tell me where I can find him?"
"He's been doing research at the John von Neumann Center these days, so you can go there if you want to find him."
The old man nodded and said, "The supercomputer center? Okay… Thank you." He turned around and was about to leave the office.
However, suddenly, the office door was pushed open.
Lu Zhou came back from the John von Neumann Center with the new data.
