A fast googling turns up people with science blogs saying they can't explain it. I'm hoping an explanation comprehensible to the lay reader will turn up. It's got to be simpler than the proof of Fermat's last theorem, right?
My first incoherent thought was that this phenomenon might be Offensive to Relativity, but I guess it's no weirder in that sense than matter being more or less rigid, or is it?
Link thanks to andrewducker.
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