Ivan seems like a pretty down to earth guy.  In this video he talks about Bitcoin volatility and the current market. 

https://www.youtube.com/watch?v=0-LRt_VDULE


Oh, by the way, are you looking for a decentralized exchange?
Try [BitShares!](https://wallet.bitshares.org/?r=staticinstance) 
https://wallet.bitshares.org/?r=staticinstance
Made by the creator of Steemit!

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