Blockchain was going to make banks irrelevant and allow the world to “be [its] own bank”. Blockchain is the technology that underpins cryptocurrencies like bitcoin. It is, in effect, a database system that records and processes transactions via a distributed network of computers, with no need for a centralised entity to verify them.

source https://finance.yahoo.com/m/ddf90d26-baff-3d0c-addb-e4dfe541f77c/blockchain%3A-disillusionment.html?.tsrc=rss