When can you say the price of bitcoin is already or nearly bubble?
Do you expect that the price will dump in coming years?
Edit: On this year how is the bitcoin value soaring ... What I mean is how fast....
You can see that the price of bitcoin in recent days is fluctuating very strong, the market is showing signs of strong recovery, so I believe that this time you should only short-term investment in bitcoin to have can reduce the risk. Bitcoin prices are recovering slightly but can be down at any time as the market is in a rebound phase, as you always have to watch bitcoins.