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Multiverse-wide cooperation in a nutshell — EA Forum

forum.effectivealtruism.org · 368 words · saved by 1 readers

(Crossposted from the FRI blog.) This is a post I wrote about Caspar Oesterheld’s long paper Multiverse-wide cooperation via correlated decision-making. Because I have found the idea tricky to explain – which unfortunately makes it difficult to get feedback from others on whether the thinking behind it makes sense – I decided to write a shorter summary. While I am hoping that my text can serve as a standalone piece, for additional introductory content I also recommend reading the beginning of Caspar’s paper, or watching the short video introduction here (requires basic knowledge of the “CDT, EDT or something else” debate in decision theory). (Disclaimer: Especially for the elevator pitch section here, I am sacrificing accuracy and precision for brevity. References can be found in Caspar’s paper.) It would be an uncanny coincidence if the observable universe made up everything that exists. The reason we cannot find any evidence for there being stuff beyond the edges of our universe is

Tobias_Baumann 8y 17 1 1 Thanks for writing this up! I think the idea is intriguing, and I agree that this is possible in principle, but I'm not convinced of your take on its practical implications. Apart from heuristic reasons to be sceptical of a new idea on this level of abstractness and speculativeness, my main objection is that a high degree of similarity with respect to reasoning (which is required for the decisions to be entangled) probably goes along with at least some degree of similarity with respect to values. (And if the values of the agents that correlate with me are similar to mi

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