I don't think anyone controls the value of bitcoin or altcoin, because I think bitcoins and altcoins are interconnected, if bitcoin goes down the altcoin also experiences the effects of bitcoin. It's not easy for Altcoin to dominate the electronics market because of the tremendous influence of Bitcoin. the proof for this is that we can understand the graph in the past few years. However, we still hope that the new Altcoin will have a place in the attractive electronic money market in the near future .