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David_Gerard comments on Justifiable Erroneous Scientific Pessimism - Less Wrong Discussion

14 Post author: Eliezer_Yudkowsky 08 May 2013 08:37PM

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Comment author: David_Gerard 09 May 2013 12:25:20PM 1 point [-]

They didn't have a mechanism at all until subduction and hence plate tectonics was discovered. The expanding earth theory was actually considered not implausible by geologists for quite a while - it didn't have anything like a plausible mechanism, but neither did continental drift. I was surprised to discover how recent this was.