It’s not meaningless. Saying Blockchain is meaningless is like saying the web is meaningless or the internet is meaningless. Just because you either don’t understand it or you feel it’s too broad does not make it meaningless.
Blockchain is a distributed ledger that guarantees consensus without any central party. It has many other properties, like making the transactions public in most cases, and many other important things that are different from centralized databases and non public databases we have been using for the last 30 years.
Blockchain is a distributed ledger that guarantees consensus without any central party. It has many other properties, like making the transactions public in most cases, and many other important things that are different from centralized databases and non public databases we have been using for the last 30 years.