Insights into what? Into how something as utterly strange and unlikely as "you" or "I" came to exist. There are so many necessary conditions for I AM to appear in time that it bobbles the Bob.
Which raises the question: would different conditions have caused another "subjective entity" to emerge, something so different from our familiar selves that we can scarcely imagine it?
This is similar to asking if it is possible for a different form of life to exist, something not based on carbon. What would it be like? Who knows? Likewise, what would a universe with different laws be like? It is unimaginable, because for one thing, imagination is only a feature of this universe. It is very unlikely to exist in other universes.
It's the same with the desire to discover "intelligent life" elsewhere. The necessary conditions for life to emerge on this planet are so insanely specific, that I can't imagine they are found anyplace else. You may find one, or ten, or a hundred of these variables, but they all need to be proportioned to one another. For example, earth has a much larger planetary wingman, Jupiter, to attract all the cosmic debris, so it won't plow into us and destroy our little floating biology lab.
Even knowing as much as we know about antiquity, or about the Middle Ages, our ability to project ourselves into these periods hits a kind of wall that we cannot venture past, for the same reason we cannot imagine what it is like to be a bat or a cow. The reason why we can't break through the wall is that we have to jettison a part -- the central part -- of ourselves that wouldn't have existed at the time, or would have only existed in a weak or nascent form. This probably sounds more controversial than it is, but it strikes me as self-evident.
For example, we all know that it makes no scientific sense to ask what came "before" the Big Bang, because time is supposedly a function of the Big Bang. Therefore, there is no before, so ignore that man behind the curtain of tenure and stop asking childish questions.
What is actually going on is that the scientific model simply breaks down at that point. It is similar to what happens at the quantum level: anomalies and conundrums arise because our common sense models simply don't apply. Thus, with no model, there is no way to imagine what is going on down there. We can invent purely mathematical models to try to tie up the anomalies -- which is what string theory is all about -- but these are more like pre-Copernican speculation about planetary epicycles. In other words, the 26 (or whatever it is) dimensions of string theory "save the appearances," as did epicycles for geocentrism.
We're getting a little far afield, aren't we? The point is that naively projecting ourselves into the past is more problematic than we may realize. For me, reading history often provokes WTF?! moments of stark incomprehension.
I'll give you a little example. I'm reading in Berman what pre-Christian law was like. While I understand the words, I find it impossible to actually put myself in the mind of a person for whom the following form of justice would have made perfect sense:
In pagan Germanic society there were two types of ordeal to determine innocence or guilt, trial by water or trial by fire -- fire for elites and big shots, water for the rest of us. "Originally these were invocations of the gods of fire and water.... Those tried by fire were passed blindfolded or barefooted over hot glowing plowshares, or they carried burning irons in their hands."
Exactly what does this have to do with justice? What, it's not obvious? "If their burns healed properly they were exonerated."
The other type of ordeal involved either freezing or boiling water. "In cold water, the suspect was adjudged guilty if his body was borne up by the water contrary to the course of nature, showing the water did not accept him." Excuse me, but WTF? Accept him?
"In hot water he was adjudged innocent if after putting his bare arms and legs into scalding water he came out unhurt." Again I respectfully ask: WTF?
Yes, this form of justice is "one way of looking at things." But is there any part of you that can really look at it this way and agree that it makes perfect sense? Nevertheless, the folks were content with it. Even with the influence of Christianity, "there was considerable resistance to the abolition of ordeals in the thirteenth century." You know, why mess with a system that is perfectly adequate?
That is just one teeny tiny example of how the past is a very different country. I could easily find more extreme examples, but you get the point: we can only pretend to understand much of the past.
"It is difficult for us to re-enter a social world where so little was shared." In other words, not only are these people different from us, but they were all different from each other. There was no "universality," because "In the twelfth century each group -- whether of feudatories, serfs, or townspeople -- was a world unto itself. People did not locate themselves in a world of commonality."
This has direct contemporary relevance, because, for example, we do not live in the same world as the Islamists. Here again, we can only pretend to understand people who torture children, burn Christians alive, and decapitate journalists. Well, maybe we kind of get the last one, but the point is that they are "missing" something we take for granted. Liberals pretend the terrorists simply want what we have, or are angry at us for something we did 500 years ago, but they are actually motivated by an entirely different mentality. The terrorists too.
Speaking of the moral insanity of the left, look at how they equate Chris Kyle -- the Sniper -- with Nazis and terrorists, as if he shares the mentality of our enemies and is motivated by the same ends! For Michael Moore, the imaginary sniper who murdered his make believe uncle is no different from a real sniper who kills evil people who want to destroy civilization and every person in it.
It is no different than equating trial by fire to trial by jury. But if you are a multiculturalist, that's what you do. We are "invaders," "occupiers," and "torturers," just like ISIS.
So, that's about the size of it. We'll end this series with a quote by Siedentop:
[T]he defining characteristic of Christianity was its universalism. It aimed to create a single human society, a society composed, that is, of individuals rather than tribes, clans, or castes.... Hence the deep individualism of Christianity was simply the reverse side of its universalism. The Christian conception of God becomes the means of creating a brotherhood of man, of bringing to self-consciousness the human species, by leading each of its members to see him- or herself as having, at least potentially, a relationship with the deepest reality -- viz., God -- that both required and justified the equal moral standing of all humans.
You say you want a revolution? That is a revolution, the most consequential ever. And it is ongoing, because there are reactionaries everywhere.