The thing is, bitcoin definitely something different with all of what we have seen in the past. A consensus with a small group of people can indeed work fairly well with all the points you mentioned above but how to reach a consensus with a very very large group of people with diametrical point of views? The answer is, it is most likely impossible. This leads us to an impasse where no decisions can be made while the market and all the businesses can't afford to wait forever. I think that XT if forcing that consensus to actually be made at some point.
Because bitcoin is something totally new, so we could not use any traditional method like war and vote to resolve the conflict of interest, it just does not suit, a fork will just cause mutually assured destruction, and most importantly it broke the promise of limited supply of bitcoin. For money, when trust is gone, the value is gone
In fact, if you look at those people that uses consensus decision-making model, they are very close to the group of people that bitcoin users are: anarchists, independent, vountarily
From the main article:
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Who uses consensus?
Consensus is not a new idea. Variations of consensus have been tested and proven around the world and through time.
On the American continent non-hierarchical societies have existed for hundreds of years. Before 1600, five nations - the Cayuga, Mohawk, Oneida, Onondaga, and Seneca - formed the Haudenosaunee Confederation, which works on a consensual basis and is still in existence today.
There are also many examples of successful and stable utopian communes using consensus decision making such as the Christian Herrnhuter settlement 1741-1760 and the production commune Boimondeau in France 1941-1972.
Christiania, an autonomous district in the city of Copenhagen has been self-governed by its inhabitants since 1971.
Within the co-operative movement many housing co-ops and social enterprises use consensus successfully: prominent examples include Green City, a wholefood wholesaler based in Scotland; and Radical Routes, a network of housing co-ops and workers’ co-ops in the UK.
The business meetings of the Religious Society of Friends (Quakers) use consensus to integrate the insights of each individual, arriving at the best possible approximation of the Truth.
Political and social activists such as many anarchists and others working for peace, the environment and social justice commonly regard consensus to be essential to their work. They believe that the methods for achieving change need to match their goals and visions of a free, nonviolent, egalitarian society. In protests around the world many mass actions and protest camps involving several thousand people have been organised and carried out using consensus, including the 1999 ‘Battle of Seattle’ World Trade Organisation protest, the 2005 G8 summit protests in Scotland and the Camps for Climate Action in the UK, Germany, Australia, Netherlands and other countries.