dath ilan is a fictional world and civilization invented by Eliezer Yudkowsky. It is a parallel reality of earth where society is much better at coordination and various good policies have been implemented, though technology is only as advanced as earth's, if not slightly less. It can be thought as a more practical and realistic form of Economist's Paradise. Eliezer first introduced it in his April Fool's day post 'My April Fools Day Confession', where he claimed that he actually came from that world and none of his ideas were original.
The policies in dath ilan include:
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