Centralised systems are fragile. Especially over the long-term...
The emperor made what (at the time) seemed the right decision.
Nobody could have known it would lead to China missing the opportunity to change history.
https://damus.io/note1ap0dxaswkpx9sxjv2pl8qsh6x2nzd2t3ldcvf2w6k7hxadhlmnzqvdyfgf