What do you think is the biggest problem when you use crypto currencies for paying? It doesn't matter if you are developer, client that looks for services, newbie or pro. Is there something what needs to be solved and what slows down crypto currencies expansion? Thanks for you opinions.
Synchronization is only needed by the client long full connection like Bitcoin Core. Technically, synchronization is the process of downloading and verifying all Bitcoin transactions previously on the network. Some Bitcoin client needs to pay attention to all the previous transactions to calculate the remaining balance on your Bitcoin wallet and create a new transaction. This step can require a lot of resources, bandwidth and storage enough to accommodate a full-size block chain. In order to stay safe Bitcoin, some people should still use the full client connections because they served to validate and submit the transaction.