if-we39re-30
Explanation
The Joke
A man and a woman are talking, and one proposes the classic romantic backup plan: "If we're both 30 and not married, let's make a pact. We'll marry each other." Instead of a sweet or sentimental response, the other person points out that this is a "statistically terrible idea" because their home provides more family stability, a higher level of attention, greater access to resources, and advanced degrees.
The comic then escalates as one character presents a full statistical argument with bell curves, explaining that assuming they fall within the normal distribution, they can expect to have an uglier kid than them with higher status, more wealth, greater physical fitness, and more attractively symmetrical facial features. In the final panels, one says they would rather be married than go to high school, and the other says they are now not marrying "on principle" -- to which the reply is simply "Be reasonable."
The Humor
The comic takes a well-known romantic trope -- the "if we're both single at 30, let's marry each other" pact -- and demolishes it with cold, rational statistical analysis. Instead of the expected heartwarming response, one character treats the proposal like an optimization problem, complete with bell curves and references to regression to the mean. The humor lies in the clash between romantic sentimentality and ruthless statistical thinking. The person making the pact expects an emotional response but gets a lecture on why their pairing would be suboptimal. The final exchange -- where one refuses "on principle" and is told to "be reasonable" -- perfectly captures the frustration of someone trying to be romantic with a hyper-rational partner.
References
The comic references regression to the mean, a statistical concept where extreme values in one generation tend to produce less extreme values in the next. The bell curve (normal distribution) shown in the comic is a foundational concept in statistics. The "if we're both single at 30" pact is a well-known cultural trope that has appeared in numerous films and TV shows.