Blockchain for sure is a revolutionary concept that would forever change the history of finance and accountability at large. However like every other thing that has an advantage, it also comes with its own flaws.

As far as there have to be "middlemen" that facilitate the process of the system, then it is a centralised system. Humans will always capitalize on every atom of control they exert over a process. The "middlemen" I'm referring to are the people that'll process the digital signing.

Take Bitcoin for example, obviously, not everyone is as Tech savy enough to carry out a digital signing process. Most people wouldn't even want to go through that stress; they just want to send btc!

So obviously, they have to pay someone to do it for them. Those guys become the middlemen! And they influence the system as they so desire. Btc transaction fees have seen a high skyrocket these last few months(not that I blame them anyways, we all just wanna make profit), but my point is, as far as there is a third party that stands in between the buyer and the seller, then there is a probability of exploitation.

Blockchain has paved the way for smart contracts and transactions, but we have to evolve. I wrote a post about IOTA's tangle technology which I feel is a great step of evolution from blockchain.