As it is announced already that Bitcoin will have a controlled supply of 21 million, meaning there will only be 21 million bitcoin created ever. What do you think will happen once that limit is reached? What's next after that?
Will there be no mining afterwards? And what about the value? What will cause the value to jump up or down?
What are your thoughts?
21 million bitcoins left in the supply is no big deal. Bitcoin economy will just adjust to the increase of demands and users by increasing its price value. That is the only way to balance the demand and supply. So there is no need to worry about, the creator of bitcoin have already programmed things so as bitcoin not having to shut down. If bitcoin is a failure it should have died a long time ago already.