To be fair, 3d printing is very cool around the house (and we've 3d printed houses!), cloud is a mild success, and ML is an amazing technological advance with near infinite potential uses that we'll likely see put into action in the coming decades-- but that one's still early to tell.
If you consider some parts of material science or chemistry to be nanotechnology, it's been pretty useful too.
Mild success? EVERYTHING is in the cloud now. It literally transformed how the internet is hosted. Anyone can take advantage of data storage, web hosting, application services, and security just by spinning up server instances on someone else's hardware.
It's arguably the most successful service that's come along since the invention of the internet.
True! I'm really underselling it, aren't I? The reason I said "mild" was because it doesn't change the fundamental way we do stuff like the others I mentioned did, but on second thought it kind of does. The improvements in accessibility and flexibility for servers are really neat.