Time is not a coordinate. But that doesn't mean time isn't real. For instance it seems inconvenient to formulate what an algorithm is in "timeless" semantics for physics. Scott Aaronson has a relevant essay about this here. Maybe to a lesser extent it seem inconvenient to talk about entropy.
Has anyone read "Time's arrow and Archimedes's point"?
Today's post, Timeless Physics was originally published on 27 May 2008. A summary (taken from the LW wiki):
Discuss the post here (rather than in the comments to the original post).
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 Relative Configuration Space, and you can use the sequence_reruns tag or rss feed to follow the rest of the series.
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