Unlike neatly defined science problems, which amaze more by their petabyte scale than their inherent complexity, virtual organisations are noteworthy because of their constantly shifting landscape of data and computer resources, and the authentication on which they rely.

ECONOMIST: REPORT: COMPUTER NETWORKS: Computing power on tap | The

Through declarative programming, Puppet allows the complexity inherent in the modern computing environments to be tamed and automated.

FORBES: Why Adopting the Declarative Programming Practices Will Improve Your Return from Technology

For this series I chose Hayek because, like Keynes - and unlike Milton Friedman - he focused on the great complexity of markets and their inherent unpredictability.

BBC: Masters of Money: Friedrich Hayek

Earlier this month Stirling Council cancelled Clans 2014 "due to the scale, complexity, and reputational and financial risks inherent with a Gathering-style event".

BBC: Clan gathering 2009

Now the greater complexity of the super-jumbo has shown up the inherent weaknesses in Airbus's production system, just as it faces a revitalised Boeing and a weaker dollar.

ECONOMIST: Airbus and EADS