You might say nothing is ever new. We always stand on the shoulders of others.
What’s new is gathering it all together, usually in some new way, and a new wave of enegy to try to create a movement.
Actually a few things are profoundly new and added to the mix: antifragility, promise theory, polarity tensions, Cynefin, neurodiversity, all sorts of new insights into social dynamics….
For some ideas like complexity, the innate understanding has been there for centuries, I some ways forever, but not the language or framework to express it.
For others like agility, it has been practiced by a few but widely suppressed by scientific management.