consilience
Explanation
The comic references the concept of "consilience" -- the idea, most famously championed by biologist E.O. Wilson in his 1998 book of the same name, that all branches of human knowledge should be unified into a single framework. Wilson argued that the sciences, social sciences, and humanities are fundamentally connected and should strive toward integration.
In the comic, a speaker (resembling an academic or public intellectual) addresses an audience: "Brothers and sisters, I ask... why must we be divided between the humanities and the sciences?" He argues that they should be united because chemistry (representing the sciences) makes accurate predictions.
But then he follows up with a pointed challenge: "Then how come all of your hair looks like it's either a severe case of dandruff or a massive patch of cotton candy?" -- essentially insulting the scientists' personal grooming. This provokes outrage, and the crowd shouts "Get him!"
The ensuing chaos leads to a brawl between the humanities and science camps. In the aftermath, someone observes that "humanities and sciences don't really exist as separate things and one side has to lose," but the real punchline is the observation that the "limiting reagent" (a chemistry term for the substance that runs out first in a chemical reaction, thus determining the maximum yield) "is RAAAAAAGE!"
The comic satirizes the "two cultures" divide -- a concept from C.P. Snow's famous 1959 lecture arguing that Western intellectual life was split between literary intellectuals and natural scientists who could not communicate with each other. The joke is that any attempt to bridge this divide immediately collapses into tribalism and mutual contempt. The use of the chemistry term "limiting reagent" in the punchline is itself a demonstration of the divide: the humanities people in the audience would likely not get the reference, while the scientists would appreciate the precision but miss the irony.
The deeper humor is that the call for unity itself becomes the catalyst for conflict -- the very act of trying to bring the two sides together exposes and inflames their differences rather than resolving them.