face it bitcoin is just a usefull ponzi,i mean when you give your money to a classic ponzi your asset for a certain time is useless,you have no power of action with it.while with bitcoin you can buy,convert to another coin,or exchange your asset.ponzi for me is not a negativ terms,as all our fiat economi is run on a ponzi scheme,and that is working pretty good..for now..but nothin is made for during for ever ever..