A guess too scary to even think about
Nothing.
This one world summed up everything that we've learned not only after the first look into the factory but even after a prolonged, detailed, and extremely precise investigation.
Nothing.
Not a single clue about what happened with the devices, how could the energy just happen to force the circuits to close on its own… We couldn't even ascertain the quality of the concrete of the core's walls, given how Chihiro judged it to be too dangerous for any mortal or even most cultivators to approach.
Even for Claire and me, just approaching the place was a struggle. A struggle great enough to dissuade us from further attempting to enter the core.
Nothing.
Our observations gave us no insight into what happened.
The prolonged mechanical check of all the devices that the workers later performed came out with nothing interesting in the results.