Babel
Explanation
The Joke
A child asks their father why there are different languages. The father begins telling the biblical story of the Tower of Babel — people built a tower so high that God knocked it down and scattered their languages — but quickly goes off the rails with absurd pseudo-linguistic explanations. People at the top "hit hardest, emitting guttural yelling sounds" and became today's Germans. People at the bottom "got languages where sound was gently pressed out of them, making airy magical speech" — that's where French comes from. The people of China "were in the middle, trapped under heavy building materials, forcing them to develop a complex pictographic" writing system.
The child interrupts: "Dad, you can just tell me you don't know." The father then claims English was created "on a dare between a Viking, a Frisian, a Frenchman, and—" before the child yells for their mother to make him stop.
The Humor
The comic parodies the common parenting scenario where a child asks a question the parent cannot answer, and the parent invents increasingly ridiculous explanations rather than admitting ignorance. Each fake origin story contains a kernel of real linguistic stereotype — German does sound guttural to English speakers, French is perceived as melodic, Chinese does use a logographic writing system — but the "explanations" connecting these features to a collapsing tower are hilariously absurd.
The final joke about English is arguably the funniest because it's almost true: English really is a chaotic blend of Germanic, Frisian, Norse, and Norman French influences, and its spelling and grammar rules are so inconsistent that describing it as created "on a dare" is not far off from how linguists sometimes characterize it.
Broader Context
SMBC frequently features parent-child dialogues where complex scientific, philosophical, or historical topics are explained in ways that are technically wrong but comedically revealing. The Tower of Babel is a classic target for linguistic humor, and Weinersmith uses it as a springboard for playful national stereotyping through the lens of a dad who would rather make things up than admit he doesn't know.