I clarify:
Let’s say scientists can’t come up with solutions to global problems, AI gets out of control and turns almost everyone into paperclips during wars, and in the 2040s or 2050s, the surviving people (about a few tens of millions around the world or even less) gradually return to the level of intelligence of their distant ancestors?


Well, yes, there are actually still places with metals, those that are not yet known (which have not moved into AI and data centers), so computers can be revived over time, but only if there are unknown mines left in your country or region.