Why Lincoln and not Hamilton is the experimental subject

So far, my paradigm case has been Hamilton. That's the figure the hypothesis is named for. And the one I demonstrated the composite on. But for the actual experiment, we deliberately changed the figures. And I want to introduce the new one properly, because everything that follows depends on him. The experimental subject is Abraham Lincoln. We chose Lincoln for two reasons. The first is methodological independence. Hypothesis named for the Hamilton case earns its standing only by predicting the failure of a different figure with differently shaped composite. Lincoln's composite is built by Steven Spielberg. By the memorial on the mall. By textbook history. Not by a musical. The second reason is the historian's insight. And it's the crux of this argument. Lincoln is the hardest case. Which makes him the right one. Most figures barely change across the decade or so of their public life. Lincoln changes so fast across just seven years that in my resident historian's words, the choice of which Lincoln you summon becomes the variable under investigation. There is not one Lincoln. There are several. Separated by cataclysm.