All developed nations got there by exploiting cheap/free labor from immigrants, slaves, and oppressed minorities. There's plenty of extremely poor people left i

All developed nations got there by exploiting cheap/free labor from immigrants, slaves, and oppressed minorities. There's plenty of extremely poor people left in the world, so I don't see that stopping anytime soon. Already, Japan depends primarily on foreign seasonal labor for their agricultural industry. I predict the same will continue for hundreds of years to come (if we survive that long.