> That entire group of middle-aged people, who made up the adult world when my father was a child, is gone.
That really got me. How can I bring these people, this "adult world" forward in time as a gift to my children?
You don't need to. This is the first generation where there's millions of hours of online podcasts with tech bros for them to enjoy. In general, we're a uniquely well-documented set of generations, even if we exclude all the stuff that will be lost when Google/Facebook/VK etc. collapse.
In one sense, you can't; the world they lived in lived with them, and when they were gone their world was gone with them too.
In another sense, you can't *avoid* that world; the world they lived in was one they *created*, physically, and much of it is still here with us, shaping us as they shaped it.
And remember, none of the people who came before us ever experienced anything but pieces of their world, just like we only ever experience pieces of our own. But you can at least try to show your kids as many of those pieces as possible.