Better warn @swardley ...https://twitter.com/vgr/status/610687832626081793 …
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@swardley@mastermark A point, long known in robotics, is that oriented maps (an objective notion of north) are qualitatively different -
@swardley@mastermark See seminal 1970s article "On the power of the compass, why mazes are easier to navigate than graphs" by Blum et al. - Show replies
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