*Melanie Mitchell* @MelMitchell1 <https://twitter.com/MelMitchell1> 15h15 hours ago <https://twitter.com/MelMitchell1/status/649417020325281792>
Great article on Bitcoin & various unanticipated economic, social, and environmental problems it has. http://www.nature.com/news/the-futur e-of-cryptocurrencies-bitcoin-and-beyond-1.18447 … <http://t.co/XRJhHSstTU> 0 retweets0 favorites
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