Even though some of the Shi say they are the descendants of a submarine crew not all of the Shi believe that, and it would have been a huge coincidence they managed to get onshore right on San Francisco's Chinatown
.
My fanon is that they are:
- Just Chinatown resident's descendants, or
- A real Submarine crashed and some chinese crew managed to mingle with the Chinatown population (just to not look suspicious because of the war with China) but way before the bombs fell
They are actually quite the researchers and scientists, how this came to happen is not explained in game, but in
My fanon I imagine that it was because of their "Emperor", I believe since it is a pre-war highly advanced computer it would have had the pre-war knowledge of sciences and it used that knowledge to train scientists.
Again those things are just speculation because there is nowhere that actually says how did those things happened, but even so the Shi are still better written than for example the institute in Fallout 4 even if they are less fleshed out... for example I will quote the wiki since it is faster than me writing my own wall of text
:
The Shi are also very active researchers. They are nearing a breakthrough in the rediscovery of nuclear power and are considering methods of space travel. They have also learned to synthesize a new fuel using plant extracts and sea life. Since integrating pre-existing pipelines to their fuel reservoirs, they can direct fuel to a number of diverse areas, including the PMV Valdez. New weapons research and insights into new polymeric combat armor, with enhanced heat and penetration resistance, look like promising additions to the Shi armament, particularly when viewed in context with their construction capabilities. It is forecast that, with vertibird schematics, a prototype could be manufactured in a year. In an additional year, mass vertibird production would be viable. Despite the wasteland lacking a proper Jet Antidote, the Shi had developed a similar endorphin blocker which is as effective as regular Jet antidote which can be occasionally available for sale.
Other, less militaristic, advances include radiation-resistant plant life in the Shi botany department, which is led by Dr. Sheng Ming. Initial experimentation yielded results with unpleasant side effects, so it was posited that research be redirected to more critical areas. After Dr. Long Wang's experimentation of injecting himself with a FEV-derived serum to manufacture super soldiers failed, his genetic research department was merged with Dr. Sheng's botany department. Due to this merging, research on radiation-resistant plant life was resumed. The research culminated in a radiation consuming vine that scoured the San Francisco area of radiation after the Enclave's destruction.
Oh look, after a doctor tried to use some FEV-derived serum to create Super Soldiers failed... he wasn't allowed to continue doing the same thing for frickin hundreds of years, they closed his department and merged his research into more useful areas and they achieved a great breakthrough, a damn
rad eating vine.
They are also not obsessed with researching the same thing over and over (like making SM for no god-damned reason, or keep making synths for again no god-damned reason, etc), their departments actually achieve useful results like new fuel types (from renewable materials like plants and sea life), new armor materials, radiation resistant plants, they might even be able to make space-travel happen, they seem like an evolving research community even with limited resources (that is why they seem to have prioritised the research of ways to produce renewable ones, which is quite realistic), not a stagnant one with infinite resources like the institute.
From a point of view of the game I also understand why the Shi exist, it is to allow the player to get high-end equipment before going into the Oil Rig, as to not go there underpowered.
This is my opinion, please do not think I am dismissing yours, everyone has their own and I am not a guy that likes to bash other people's opinions
.