How would I possibly prepare for that? In the face of all that, I'm a leaf floating down the river of history. What would I have done about the Facebook recommendation algorithm in 2016?

It's a sad(?) reality of life our agency is _so small_. We do what we can. But even there, the best we can do is align ourselves to whatever forces of history our out there that correspond to our values. Even "great people" have more often than not been thrust into whatever role they had, rather than single handedly willing something to happen.