[aboodman]

People say this because blockchains are currently extremely complex and expensive in exchange for the value prop "don't need to be hosted by a trusted authority". That doesn't mean the value prop doesn't exist - it just means there are better tradeoffs today.

There are tons of cases where groups of entities interact and don't inherently trust each other. That is basically all of trade. In all of these cases, it would be more ideal if no one party had to be a trusted authority.

As soon as it seems simpler and less expensive for blockchains to implement this behavior, they will suddenly become a useful tool for all kinds of applications.