Wu Chang wasn't surprised that He Yun mastered the knowledge within the Mechanical Crown in just a few days.
With the Mechanical Heart, He Yun can multitask, dividing a problem into many parts and studying each part simultaneously with her separated consciousness.
As long as her research doesn't hit a bottleneck, it's as if she has dozens or even hundreds of times more time than an average person for research.
Moreover, since He Yun has already mastered the technology of the Underground Shelter and Hymn Company from two different planes, it's no surprise she quickly researched the Mechanical Crown from the steam engine era.
The effect of the Mechanical Heart is powerful, but the only downside is that He Yun can currently only manipulate machinery; she can't use computers as an external brain or upload her consciousness to the network to access any information anytime, anywhere.
