It’s all a matter of where we are in the hype cycle. And that is not evenly distributed (much like the future).

The first impact is by far the most important one (cryptography, solid quantum engineering), the second wave is questionable (bitcoin), and the third one tends to be nonsensical, but the side cultural side effects after the bubbles finish popping is often where some of the deeper influences remain, as a culture integrates to its lexicon of commonsense plausibilities the misunderstood, mixed-up remains of Ph.D. dissertations and vacuous white papers.

This is an interesting way of thinking about it.

Blockchains are an alternative system for promise enforcement