In the rich world, perhaps the top one billion, we probably could cut back and use less, but every year, this number, on average, is going to go up, and so, overall, that will more than double the services delivered per person.
En el primer món, potser els mil mil.lions més afavorits, podriem fer retallades i utilitzar-ne menys però cada any, aquesta xifra puja de promig i aleshores, en termes generals, es duplicaran els serveis que es donen per persona.