Jeffrey Kaplan tackles a 19th-century German philosophy paper that sounds impenetrable but actually solves a problem we face every time we learn something new about someone we thought we knew. The piece's most distinctive claim is that language operates on two levels simultaneously: the object itself and the specific "mode of presentation" through which we encounter it. Kaplan argues that without this distinction, we cannot explain why discovering that "Shawn Carter is Jay-Z" feels like a genuine revelation rather than a trivial tautology.
The Puzzle of Identity
Kaplan begins by dismantling the prevailing 19th-century view held by John Stuart Mill, which suggested that a name's meaning is simply the object it points to. If Mill were correct, Kaplan writes, "the name Shawn Carter and the name Jay-Z mean exactly the same thing and so sentence one and sentence two are no different." This logic collapses when faced with real-world learning. Kaplan illustrates this with a viral video where a woman on a subway realizes the man next to her is the famous rapper Jay-Z. She already knew the name "Jay-Z" and the name "Shawn Carter," yet the moment of connection was not linguistic; it was empirical.
The author notes that under Mill's theory, the statement "Shawn Carter is Jay-Z" would be as banal as "Shawn Carter is Shawn Carter." Yet, as Kaplan observes, "sentence 2 can be informative in the way that sentence one never could." This is the crux of the puzzle: how can a sentence be both true by definition and yet teach us something new about the world? Kaplan argues that Mill's framework fails because it cannot account for the "cognitive value" of identity statements that require discovery.
"She's not learning anything about the meaning of the name Jay-Z... she's learning an empirical fact a fact about the world which is oh this guy that I've been sitting next to he is Jay-Z."
This framing is effective because it grounds abstract logic in a relatable human experience. However, critics might argue that reducing this to a simple empirical fact overlooks the complex social construction of celebrity identities, where the "name" carries cultural weight beyond mere reference. Kaplan sidesteps this sociological nuance to focus strictly on the mechanics of language, which keeps the argument tight but perhaps slightly sterile.
The Solution: Sense and Reference
To solve this, Kaplan explains how Gottlob Frege introduced a middle layer of meaning he called "sense." This is distinct from the "reference" (the actual object). Kaplan clarifies that the sense is the "mode of presentation"—the specific way an object is characterized or viewed. He uses the classic astronomical example of the Morning Star and the Evening Star. Both refer to the planet Venus, but they present it differently: one as the bright object before sunrise, the other after sunset.
Kaplan writes that Frege realized "the idea is simply that when Ellen had this moment of realization on the subway she wasn't realizing something about the meanings of these terms she was realizing something about the world around her." The breakthrough is recognizing that while the reference is identical, the sense is different. Kaplan uses a geometric analogy to drive this home, describing a triangle where three lines intersect at a single point. One can describe that point as "the intersection of lines A and B" or "the intersection of lines B and C." Both descriptions point to the same spot, but the descriptions themselves are different.
"These two names for that one point... they pick out the same point but they present that point in different ways ways they involve different modes of presentation of that same point and hence the statement contains true knowledge."
This explanation is the piece's strongest asset. By moving from the rapper on the subway to the geometry of a triangle, Kaplan demonstrates that this isn't just about famous people; it's a fundamental rule of how human cognition processes information. The distinction allows us to understand why we can know a lot about a person (or a star) and still be surprised to learn they are the same entity as someone else we know.
The Architecture of Meaning
Kaplan concludes by synthesizing these examples into a unified theory of language. He posits that every linguistic term has a reference (the object) and a sense (the description or mode of presentation). This dual structure explains why "The Morning Star is the Evening Star" is a profound astronomical discovery, while "The Morning Star is the Morning Star" is useless. As Kaplan puts it, "a name or for that matter any other linguistic term a name has not only this level of meaning which is the object named but also the way that that object is characterized or presented by the sign by the name."
The author's choice to use the "McMansion" analogy—seeing a house from the fancy front versus the plastic siding in the back—adds a layer of visual intuition that makes the concept stick. It suggests that our knowledge of the world is often fragmented by our perspectives, and language is the tool that allows us to stitch those perspectives together.
"Fraga's point is this a name or for that matter any other linguistic term a name has not only this level of meaning which is the object named but also the way that that object is characterized or presented by the sign by the name."
While the argument is logically sound, it relies heavily on the assumption that "sense" can always be neatly defined as a description. Some modern philosophers of language argue that this breaks down with proper names that don't have clear descriptive content, a nuance Kaplan glosses over to maintain clarity for a general audience.
Bottom Line
Kaplan successfully demystifies one of philosophy's most dense texts by anchoring it in the universal experience of connecting two pieces of information. The strongest part of the argument is the clear separation of "sense" from "reference," which elegantly solves the problem of informative identity statements. Its biggest vulnerability is the simplification of how "sense" is constructed, but for a busy reader seeking the core insight, this trade-off is well worth it.
"These two names have the same reference but different senses different ways of presenting that reference that's exactly what's going on with Shawn Carter and Jay-Z."
The piece serves as a vital reminder that what we know is not just about the objects in the world, but about the specific lenses through which we view them.