Not surprisingly we came up with water source, warmth = means to make fire, clothing, means to get food and some form of shelter and not much more. Though not possible by the billion, but if the global population loved this way things would not be so bad. Of course we would never have achieved such a large population living lik e this either. Not a bad thing.
So, stepping back into our current situation. What do we need? In order to exist in our current situation. Not wants, just basic to keep you where you are?