I've seen studies where Google broadly 'categorized' personality types from certain time periods (e.g., a decade) and from a similar area (e.g., the US) as having very similar experiences. I know HN is a microcosm of the general public, but even here, I find dozens (maybe hundreds) of people who were exposed to the same 'input' as me tend to have the same long-term views and interests.

Certainly that doesn't help 're-imagine' someone as unique as Angela Merkel, but if her Google searches were known, maybe her humourous personality would shine through if they were combined with traits common to Germans born in the 50s? Maybe someone asking questions to a digital ghost would also have to specify whether they want to speak with Angela the person (limited information) vs. Angela the politician (lots of information)?

Much of what I've discovered and correlated on the people I'm researching would have remained undiscovered unless someone had the time to sift through literally thousands of physical journals as opposed to a month of Archive.org queries on my part. The digitization and open access to old books uncovered new connections and information. It's fascinating!