What do you think about Crypto-Currencies/Digital Currencies?

As we have come a long way from 2009 (Until the invention of the Bitcoin) till date. What is your opinion about Digital Currencies and how they will impact in our future. Will Digital Currencies change the industries (Finance, Manufacturing, Service, Mining, Airline etc.) as a whole?

We all are curious to know our future and that's the key to success.

The most important thing about the time is that it changes.

Will this change the way we see at FIAT currencies?

Regards