There is only 2 thing that can stop bitcoin to grow or stay in this world
1. If and only if every country (no one will be left) will unite on not accepting BTC and will banned them on every people they have.
2. IF and only IF there will be no demand and every one will send it to burning wallet address.
as long as there is a few accepting and having it, BTC will never be gone!
My thoughts exactly. It has always been a supply and demand thingy. If there's no one who needs it then it will be gone eventually.