NOVA | PBS (@novapbs) tweeted at 4:12 PM on Tue, Sep 27, 2016:
Some experts are saying gravity’s effects kick in too slowly to account for a universal arrow of time. https://t.co/LqKxCcxqjd via @WIRED
(https://twitter.com/novapbs/status/780877791831162884?s=09)
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On the road with Scott Sky Smith.