In my scenario, a tremendous war wipes most of the humanity. While pockets survive here and there, the biggest part lives in one city, totaling around 3000 to 5000 survivors. It is also important to mention that :
- Most buildings are in a very bad shape or crumbling, except one fortified place with a farm capable to feed thousands easily.
- There is a source of virtually unlimited power.
- The technology is basically 1990s, with an excellent medical and military knowledges that surpasses easily our own.
- There is no nuclear winter, radiation, or anything preventing people from living on the surface, but the flora is very prolific.
In such scenario, would the group be able to recreate a society and survive for more than a thousand of years, and develop space-related technologies? (i.e. being able to launch a station in space)
Thank you a lot for reading this and helping me out! :-)