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Armin, thank you so much for your thoughtful comments.
The reference to the 85 getting richer is actually a warning not to "eat the seed corn." The world economy has gotten to be a 2-tier system wherein a small group of the rich trade among themselves, which shrinks the capital resources of the poor and middle class. This is bad for everyone, including the rich, because they are treating capital as a commodity; the free market has become a worldwide case of insider trading, dependent on inflation to succeed and dependent on recession to sustain that success. It's a self-destructive loop, though, when recession becomes depression, the system crashes and everyone loses.
Another negative outcome of this dynamic is that it forces the wealthy to shift from controlling resources to controlling people -- we have created opportunity for the Rupert Murdochs and the Koch brothers of the world to openly subvert the democratic process (and it is getting even worse in the U.S., with a stream of partisan Supreme Court decisions in the last 15 years), because they have no more economic opportunity. Their success is not measured in good roads, safe buildings and clean water; it is measured in the extent to which they can influence social policy. This is a step backward to the robber barons of a century ago.
The cake-knife metaphor is meant to underscore the difference between control of people and control of resources. If the former is relinquished, the latter has a chance to flourish -- and the lateral integration of communication with laterally distributed physical resources has the best chance to make it possible, in my opinion.
Best,
Tom