sorry my friends should stop thinking about the concerns that have not happened yet, the previous experience can be used as a foothold and encouragement so that we can stand even though the storm hit hard, as long as people are still talking about bitcoin I feel that bitcoin will stay alive for less than ten years from this bitcoin birth I think the future will be bright and today is not mature of course we have to think more into the concern and care about how to maintain and care for it well through all the potential possessed from various aspects that can be given for the progress of bitcoin.