Few days ago a friend asked me this questions. But i cannot understanding that how to i give him answer. At last i said him that, bitcoin is an online currency. Only this currency used in online marketplaces. It is not possible to use it in offline marketplace like offline currency.
But what is your best answer of this question?
No I dont think so because bitcoin is a digital currency and digital means no physical existence and no physical existence means that no one can use it offline. You must need computer and internet to use your bitcoin. Your account is computerized and computerized means need computer to use. Thats why I think that bitcoin cannot be used offline. It can be used only online and need with computer and internet.