Vitrum

The steam era called "Vitrum" has lasted for three thousand years. The gears bite time and the boilers steam civilization. However, every inquiry into the unknown is like engraving on the tombstone of a god - the acquisition of knowledge will inevitably lead to "pollution": those who come into contact with taboos will experience sensory disintegration, thinking distortion, and the body will gradually alienate into a non-human form, eventually turning into "knowledge residue" crawling in the city's underground pipe network. Technological stagnation is not due to technological bottlenecks, but to the active self-castration of civilization - progress is sacrifice, and pursuit of knowledge is degradation.