It used to open them to most of the population - at least that was the ideal for a couple of decades - but now it seems to be opening them to oligarchs more tha

It used to open them to most of the population - at least that was the ideal for a couple of decades - but now it seems to be opening them to oligarchs more than workers. It's essentially a political energy source. It heats everything up. Eventually it either explodes, goes through a phase change to a new (meta)stable state, or collapses back to a previous state.