As a historian, I found myself all too often treating my historical subjects like fictional characters, malleable entities that could be made to do one thing or another, whose motivations could be speculated upon endlessly, and whose missing actions could be reconstructed and approximated based on assessments of prior and later behaviors. It was one of the hazards with working a fragmentary source base. You had little scraps, like puzzle pieces, and you could put them together as best you could. But no matter how faithful you tried to be to the historical record, there would always be that element of guesswork, of imagination, of (if we're being totally honest) fiction.