I haven't read all that he's written on the topic, so it may be true for all I know. But I'd still be surprised and disappointed if he and other prominent participants here take for granted, for example, that one-person-one-vote democracy is a good idea for all places and times, which is given in the original article as one of the ideas that a proponent of modern values might want to transmit. (Of course, this is a widespread and high-status delusion nowadays, but the amount of evidence against it beats almost anything that's normally considered superstitious.)
Today's post, Archimedes's Chronophone was originally published on March 23, 2007. A summary (taken from the LW wiki):
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 Useless Medical Disclaimers, and you can use the sequence_reruns tag or rss feed to follow the rest of the series.
Sequence reruns are a community-driven effort. You can participate by re-reading the sequence post, discussing it here, posting the next day's sequence reruns post, or summarizing forthcoming articles on the wiki. Go here for more details, or to have meta discussions about the Rerunning the Sequences series.