If your here to quote Says law then you have my support. But while growth in specific investments must always stop, eventually, aggregate growth will continue

If your here to quote Says law then you have my support. But while growth in specific investments must always stop, eventually, aggregate growth will continue unless people opt for a lower standard of living. It's easy to look at a particular assets class - say railways- and show zero return over a long period. But looking at all improvements across all industries shows growth is always coming from breakthroughs somewhere. Healthcare, rocket science, these are two major fields wher rapid change is evident, even if it is of the incremental kind. I think you've mixed up the concept of compounding interest and specific assets classes ability to return positive and withstand time. They are really two separate topics.