When I watched the movie Lincoln I wondered how do we know what we know about his decision making, his mannerisms, his relationship with his wife?
Data, of course. Data in the form of government documents, personal letters, travel itineraries, transcribed debates, photographs, and speeches.
All of which was ravenously collected in the shadow of Lincoln’s assassination. It seems that every minuscule data point of Lincoln’s life was snatched up and preserved by someone.
In the future, you won’t have to be famous or die an infamous death for researchers to have enormous amounts of data about your life.