Three years ago or two years ago, if you asked me what Bitcoin is, Id tell you it is the future of money. It is managed by the network, not by the government. Plus, it is private, anonymous and fast. Its just perfect!
And Bitcoin is proved very successful. But it has inherent risks like anonymity, hacking，51%attack, double spending. Stop imagining bitcoin is perfect. No coins are perfect. Id say bitcoin means more about possibilities, possibilities of expression of value. Before, Ive been taken it for granted that the government should control currencies. But now Id like to take a moment to think of the question:
What is the nature and origin of money?
Your first paragraph is really true for Everytime in my life . But as your are asking about the bad future Currently Because of the double spend , hack of network and it is possible also that you can ask about the confirmation for the next post .
Here I would like to tell you that hacking of the bitcoin network is impossible because yet no one hacked this network .
Your second fact that double spend , these have solutions and also I faced the problem of double spend but I get solution simply .
If you will compare bitcoin with the Fiat then you will find that fuat have more bug then what the bitcoin have .
In my life I never faced any big problem in the bitcoin than what I faced in the practical money .