Living in Many Worlds
LessWrong Sequences, 2008
Abstract
Many-worlds interpretations of quantum mechanics, while counterintuitive, lead to normal, observable consequences. The universe constantly branches due to decoherence, a process orthogonal to human decision-making. Each world follows the known laws of physics; seemingly strange outcomes are merely low-probability events consistent with these laws. Practical decision-making remains largely unaffected, with choices influencing the future of a given world, not others. While many worlds exist, focusing on extremely low-probability scenarios is computationally inefficient, analogous to playing the lottery with quantum random numbers. Ethical implications include favoring average utilitarianism and finding joy in personal discovery. Overall, the many-worlds interpretation describes the universe as it has always been, without introducing abnormalities into everyday life. – AI-generated abstract.
