Originally posted July 27, 2018
Here is an excerpt:
Reasonable people often disagree about how to live, but we need to structure society in a way that reasonable members of that society can accept. Citizens could try to collectively agree on basic rules. We needn’t decide every detail: we might only worry about rules concerning major political and social institutions, like the legal system and economy, which form the ‘basic structure’ of society.
A collective agreement on the basic structure of society is an attractive ideal. But some people are more powerful than others: some may be wealthier, or part of a social majority. If people can dominate negotiations because of qualities that are, as Rawls (72-75) puts it, morally arbitrary, that is wrong. People don’t earn these advantages: they get them by luck. For anyone to use these unearned advantages to their own benefit is unfair, and the source of many injustices.
This inspires Rawls’ central claim that we should conceive of justice ‘as fairness.’ To identify fairness, Rawls (120) develops two important concepts: the original position and the veil of ignorance:
The original position is a hypothetical situation: Rawls asks what social rules and institutions people would agree to, not in an actual discussion, but under fair conditions, where nobody knows whether they are advantaged by luck. Fairness is achieved through the veil of ignorance, an imagined device where the people choosing the basic structure of society (‘deliberators’) have morally arbitrary features hidden from them: since they have no knowledge of these features, any decision they make can’t be biased in their own favour.
The brief, excellent synopsis is here.