If our current civilization collapses, I think it’s unlikely that another similar one would arise- or if it did it would happen much more slowly. There are no

If our current civilization collapses, I think it’s unlikely that another similar one would arise- or if it did it would happen much more slowly. There are no more easily accessible seams of rich ores of any kind in the world; the deposits remaining require a lot of energy and technology to use since they are low grade ores and it would be very difficult to get to a high enough technology level to use them without already having the refined minerals. A chicken and egg problem. https://images.app.goo.gl/5aNH7AWvb3V745ZH6 https://images.app.goo.gl/5aNH7AWvb3V745ZH6