If you can dream it, you can build it...

Why is blockchain a big deal? 

The blockchain is evolving to transform the Internet from a network of connections to a network of value. Beginning with private networks we are seeing the growth of decentralized services where the transacting parties can rely on peer-to-peer interactions. Once recorded, the data in any given block cannot be altered retroactively without alteration of all subsequent blocks, which requires consensus of the network majority.