Interesting theory, but in order for economic growth to occur someone has to be there to buy the goods that these machines will be producing. Fewer humans alive

Interesting theory, but in order for economic growth to occur someone has to be there to buy the goods that these machines will be producing. Fewer humans alive to buy goods with fewer jobs equals a shrinking economy, regardless of how the goods are produced. At that point we would probably start looking at other economic systems anyway.