Encountering Lu Yuan again

An Yuqian could not accept Ren Xiaosu's bragging. "Do you really know what programmable matter entails?"

Ren Xiaosu looked at An Yuqian. "What?"

An Yuqian raised his voice and said, "Programmable matter is a type of 'intermediary matter' that changes its physical properties based upon user input or autonomous sensing."

Ren Xiaosu thought for a second. "Real words, please."

"In short," An Yuqian said, "if you want to build this kind of armor, its components must at least have the ability to shapeshift and self-reconfigure. Without programmable matter, you can't create flexible self-combination and separation processes."

"Mhm." Ren Xiaosu said calmly, "No worries about that."

An Yuqian nearly went crazy. "Don't you understand what I am saying? How can you not be worried about something this important!"