I love this.

My great grandmother, who lived into my 20s, wrote a 10 page memoir about growing up - life stories, people, places etc... And I found it super interesting - I built a vacation around the places last summer.

I asked her daughter/my grandmother to do the same, but she wasn't interested. And then I've thought about the exercise myself - it's hard to think of things in my life that a future great-grandchild might find interesting. And it's not clear if my great-grandmother's story I find interesting, in contrast with financial hardships I did not face? How do you pick out the interesting from the mundane? What is most interesting about today 100 years from now?

And I can see the potential for core interview questions to help draw it out.