- Buildings and construction materials
- Cars, trains, ships and aircraft
- Industrial machinery
- Computers and electronic products
The point is that these reserves of material are not going to run out - processing and using up the entire earth's crust would be quite a challenge for even the most wasteful societies. Of course we are not advocating wasteful processes just because material is plentiful; one aspect of technological progress is the increasing efficiency of design and manufacturing - doing more with less.
Recycling should soon become far more widespread than it is now, further reducing the burden of having to process new material for creating goods and infrastructure. Product design and engineering will become increasingly sympathetic to the recycling process which is becoming increasingly automated.