When I study, I have my own framework. History: politics, economics, technology, ideological and cultural life, geography and population. The world is made up of these things. I observe and think through these dimensions. When I learn, I also know what exactly I’m studying, compare different histories, and use these same dimensions to draw comparisons. That’s why I’m very curious about all kinds of things—because I’m adding details to this framework.

This is something I came up with on my own. Later, I found out that this is actually a specialized research model, and it gives that sense of “we see things in much the same way,” like the thoughts of a hero coinciding.