Computationally, world peace isn’t a hard challenge.
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We are given a planet full of material goods and are challenged with maintaining our society on it, while pursuing a secondary collective goal of increasing our knowledge base infinitely.
A simple information-sharing DeGroot style society, having explored this planet, would share information until they converged onto a single shared framework of belief, upheld by a collective shared knowledge base.
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This was the dream of the old (2000s) internet. For a moment, we believed that all problems were just a lack of information.