Perhaps the blockchain is the technology equivalent of the panda. You hear an awful lot about it without ever being clear what exactly it’s for and why we should care if it disappears.
Russell Davies on the megafauna of technology.
The other big hitters are probably drones, robots, AI and self-driving cars. It used to be smartphones and 3D printing, but they’ve become too ubiquitous and banal. You can’t be charismatic if you’re everywhere.