No I do not think that bitcoin is a bubble in the human history. I am thinking bitcoin as a currency and for the investors it is an asset and because of them the price of it is increasing and decreasing and it happens in any asset when the traders start to trade with that asset so we have not to worry about the price of bitcoin. It will go up and down and in the long term it will go upward.
Bitcoin have proven to be the answer to most questions people have had about their finances, that's where the bedrock of the demand and and adoption emanates from. For anyone that knows the history of Bitcoin, calling it a bubble I guess would be the last thing he would ever have it call.