"In the world today we have the resources not just to feed everyone, but to give them a decent life, with education, entertainment, and housing that is warm in the winter and at least not unbearable in the summer. We can cloth everyone well. We have had the ability to do this for at least a hundred years or so, in theory, we’ve had it in practice since the recovery from World War II.
To do so, however, we must believe that we should, and we must be willing to act on that belief. There will be sacrifices (a lot fewer billionaires, a lot less McMansions), but in the end even most of those who complain would be objectively better off, because inequality is robustly associated with worse health and less happiness, even for those who are the richest. The top .01%, if they were still the top .01% but had far less money and power, would be happier and healthier in such a world.
As such, the battleground of belief; of ideology, is as important as that of technology. It is belief, mediated by power and turned into behaviour, which determines what actually happens in this world."