Although the price of bitcoin is up and down but I'm sure bitcoin won't run out, it's because bitcoin is considered the strongest crypto for now. Many people still use bitcoin and I think this will make it easier for bitcoin to grow and continue to be the strongest crypto. Many people have felt the benefits and maybe they are increasingly interested in bitcoin.That is my reason why I concluded that bitcoin will not run out.
What you say is true, bitcoin will not run out, bitcoin will have a long term, but the problem of bitcoin in 2018 changes very far, prices continue to decline, this situation everyone feels panic, various ways everyone is looking for ideas so this price does not decrease far.