Post B6jaX2tE9CpdYBmxKC by xkcd@mastodon.xyz
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 (DIR) Post #B6jaX2tE9CpdYBmxKC by xkcd@mastodon.xyz
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       It's possible to do sea navigation without a compass, but you'll have to get some spoilers from the Polynesians.https://xkcd.com/3251/