For the first time, when I move to cryptocurrency world (March 2016) the btc price were around $400... it was risen up to $17000 few days ago... 17000/400 x 100 = it's 4520% growth in 21 months.
There's a popular statement such as, the thing what it is existing next to the risk is the success.
Should I believe it and do what I didn't do 21 months ago?
Bitcoin is really a confusing state. Whenever it hits a value, it will always be on inconstant place. For some reasons, it could sometimes be obviously observed but so far it is also seem to be not stable. After all, this will be a thing that will always put things at risk.
The risk is there though most people that invested in Bitcoin have a feeling that the price is going to grow more.