The negotiations didn't break down because of an unbridgeable gap between the North and South; creditors and debtors; the German `Ordoliberalism' of Schäuble and Djisselbloem and Greek-style Marxism of Varoufakis and Tsipras. This gap has never existed. They broke down because Varoufakis repeatedly breached the Eurogroup's etiquette. In doing so, he challenged the very foundations of the eurozone's mode of governance.

The Eurogroup is not a democratic institution. Though it is made up of finance ministers from democratically elected governments, these ministers meet as individuals who are there on the assumption that they will build consensus, make compromises, and reach agreements amongst themselves.

The etiquette of the Eurogroup is that one leaves one's national interests at the door. Relations are more personal than political. Ideologies and grand statements of political doctrine have no place in the body's deliberations. If a minister is constrained because of a difficult situation at home, this is treated as an understandable -- if unfortunate -- problem that needs to be solved. Ministers find in the Eurogroup a source of energy and support for taking on their own domestic populations. It is also a private club of sorts, where what goes on inside remains secret. Ministers attending the Eurogroup are transformed from politicians representing interests into experts seeking solutions to common problems.

The hostility towards Varoufakis stems from his breaking of all of these rules. He refused to play the Eurogroup game. It's not really about riding a motorbike, wearing combat trousers and being a celebrity academic-blogger -- though his charisma and popularity probably created jealousies amongst the other (colourless and tie-wearing) politicians.

At the heart of the matter is how Varoufakis presented his demands. Thinking of himself as a representative of the Greek people, he made his wishes public, and when in the Eurogroup, he maintained the same stance -- changes in views could not be informally agreed around a table but had to be taken back to Athens and argued for, in cabinet and with the Syriza party.