If you believe that Bitcoin is a bubble then when do you think the time it will burst? Because i don't see any bubble that will burst for a long time period. Bitcoin is not a bubble and it will not burst as numbers of countries that adapting Bitcoin is increasing which mean that it is impossible for the Bitcoin to burst and disappear like a bubble.
I think we all have to stop to compare Bitcoin with a bubble. It is the best cryptocurrency that has been ever invented. It is our future, and the great way to earn money.