> There are countless examples where a promising innovation, or even a seemingly useless but novel result became important at a much later date than 10 years.
While that might be true, that doesn't mean that a lack of success actually indicates success. That'd be a useless tautology.
More importantly, earlier innovations that took their time usually at least had a clear proposition of value. When electricity was introduced it took decades before businesses had adjusted their manufacturing and supply lines to the new technology, but everybody could trivially see that powering things remotely and sending information over long distances is pretty darn useful.
There is no such hypothetical justification for blockchain technology, or at least there isn't in many cases were people rabidly keep advocating for it.
As the author points out, in many fields the blockhain technology is less energy efficient, slower, and provides the opposite of what most customers want.
That is