There - just visible in the London fog - something - yes! It's the #HajnalLine!
via @hbdchickhttps://twitter.com/edwest/status/596606500782645248 …
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@hbdchick Psephology repeats phylogeny
@hbdchick Here's another Hajnal line image http://www.nature.com/news/500020a-i2-0-jpg-7.11661?article=1.13471 … - getting to be like the Shroud of Turin....
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