I've seen a video in youtube that BTC price started to go down from Dicember 2017 because of BTC-futures. Big gamers make it because they want people panic and sell their coins. Because they want more control. And, as we know, Ethereum is next (CBOE: "there is no barrier to Ethereum futures anymore"). What you people think about this? Can the Ethereum price go down same as BTC after ETH-futures announcement?