What I know is that Bitcoin and Ethereum are both not in a bubble, it did not happen and I think will never happen this year or maybe next year. Although they both made tremendous gains in 2017 they're just in a bear market. At the time of writing, the total Market Cap of all cryptos is $211 billion based on coinmarketcap.com and that's still small compared to the tech bubble that happened in the year 2000 that grew to about $1.7 trillion before it burst. Now, do you think Bitcoin will explode with $110 billion it had today? The more it will not happen to Ethereum as it has a relatively tiny considering its total market of around $29 billion.