Since the events in video games have no actual long-term consequences, playing a video game is not likely to be nearly as emotionally involving as much less dramatic events in real life. The supposed Utopia of playing lots of cool video games forever, is life as a series of disconnected episodes with no lasting consequences. Our current emotions are bound to activities that were subgoals of reproduction in the ancestral environment - but we now pursue these activities as independent goals regardless of whether they lead to reproduction.
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This post is part of the Rerunning the Sequences series, where we'll be going through Eliezer Yudkowsky's old posts in order so that people who are interested can (re-)read and discuss them. The previous post was Changing Emotions, and you can use the sequence_reruns tag or rss feed to follow the rest of the series.
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