It can't be changed, which makes it a great tool for public ledgers because it stops changes from being made It can also help get the word out about public records Blockchain was made by developers who thought the financial system was broken They laughed at the idea that it could take up to five business days for payment confirmation and settlement in cross border transactions Blockchain makes transactions possible in real time even across borders and gets rid of banks which lowers transaction fees Blockchain can speed up the process of moving money since there are no banks and transactions are checked around the clock most blockchain transactions can be settled in seconds.