Yeah, but...
Transistors existed between 1950 and 1960. But they didn't really set the world on fire until the 1970s.
Computers existed in the 1950s, but they didn't explode into businesses until the IBM 360 series, and they didn't go into homes until the 1970s, and not in volume until the 1980s.
Xerox existed, but didn't explode until the 1970s.
And so on. It is decades from something being invented, to commercial availability, to widespread commercial use. And only when it becomes widespread does it change the world.
So I claim that the "revolutionary" part is when something already existing becomes widespread and applied. That was (in my previous examples) electricity in the 1920s and 30s, and personal computers in the 1980s and 90s. They already existed. But when they became widespread and used for everything, that's when the world changed.
So, what was that in the 2010s? I would say cell phones. Yeah, they existed before. But now everyone had them, which meant that everyone could be reached all the time, and everyone could take pictures, and read the news, and search the net, and watch sports, and listen to music, all the time, no matter where they were. That changed the world, or at least society, quite a bit.
What is it for the 2020s? It could be AI. That is, plausibly, exploding. If it continues to do so, it is likely to change everything. mRNA vaccines may become a thing that changes everything, at least as much as the polio vaccine, but we are not there yet - at this point it's still a maybe. SpaceX lowering the cost to orbit is a big deal. Starlink may be; I'm in the US, where internet rarely depends on satellites, so I'm not in a good position to judge that one.