Blockchain technology is changing the world and it is true that in the near future the crypto will be a universal currency. Like now bitcoin is the currency which have fast the online transaction and with out a barrier of countries people do trade of goods and services with the help of this currency useful through technology of the present.
As of now we can't consider as totally change the world, perhaps it will contribute to makes things easy just like having a quick and easy transaction with the help of bitcoin and also save data through blockchain technology. We can that many companies and institutions who wanted to use blockchain even in some banks. Indeed, it is very useful to us and to make life easy.