I have to agree with rlsj here - I think we're at the point where humans can no longer cope with the pace of economic conditions - we already have hyper low latency trading systems making most of the decisions that underly the current economy. Presumably the limit of economic growth will be linked to "global intelligence" - we seem to be at the point where with human intelligence is the limiting factor (currently we seem to be unable to sustain economic growth without killing people and the planet!)