Inspiration!
Although it was about constructing a mathematical system, and it all seemed to be about frameworks and calculation problems, it actually required "inspiration" to explore.
For example, an important question to consider was, "If the spin generated by the ion lattice doesn't produce a new field, what could it be?"
They came up with several ideas, but after some discussion, all were rejected.
Zhao Yi realized he needed inspiration, something that Li Ning definitely couldn't provide.
What to do?
Maybe... ask someone else?
Unable to think of anyone at the moment, Zhao Yi simply went outside for a walk. Seeing Zhou Lizheng coming toward him with books in hand, Zhou said upon noticing Zhao Yi, "What have you been researching lately? You seem really busy all the time, working with that Professor Li, right?"
"Yes, an antigravity issue," Zhao Yi said briefly.
"Antigravity?"