What do you think about blockchain ?, do you think that this technology will change our world for better one or not?

Anyone of you started a project using blockchain technology?

.

Sure Bitcoins idea that you have a payment system with no ownership on the system is fantastic.
But I don't get why it is such a big deal in the commercial sector. The Idea is deeply anti establishment.

Block chain start ups just create a database which puts ID's on enteties and they sell that to megacorps as block chain. Lulz.