The internet is a big change. Cryptocurrency is not on the same scale. But I would be inclined to agree that the impact of even computers and internet on the recognizability of everyday life is less than that of eg. telephony and airplanes.
> I would be inclined to agree that the impact of even computers and internet on the recognizability of everyday life is less than that of eg. telephony and airplanes.
Remember when we needed to go to a payphone to tell our parents we were in the mall and to ask them to pick us up? And that they had no way to phone us while we weren't home?
Some quantitative changes become qualitative in enabling completely different behaviors. Few people had phones, they were tied to a physical location. Now we do video calls between people in different countries while driving.
You can ask your phone what's the molecular mass of methane. Or ask it to identify a song that's playing in the restaurant.