Explain SMBC — the wiki for Saturday Morning Breakfast Cereal

The Joke

A parent asks a child, "Bobby, what do you want to be when you grow up?" Bobby replies that he wants the highest status, the best-quality mates, and the most offspring. He explains he can achieve this either by raising himself up or by lowering everyone else down. He then observes that as population expands, primacy through the first path becomes impossible, while primacy through the second path -- the path of all-out destruction -- becomes merely improbable. The parent says "That's nice, Bobby. But what do you WANT?" Bobby replies: "Quantitative change."

The Humor

The comic takes the innocent childhood question "What do you want to be when you grow up?" and has a child answer it with cold, game-theoretic evolutionary logic. Bobby's analysis reduces all human ambition to its Darwinian fundamentals -- status, mating success, and reproductive output -- and then logically concludes that destroying everyone else is actually the more feasible strategy. The punchline "Quantitative change" is darkly funny because it's a euphemism for what he's really describing: mass destruction as a career path. The humor lies in the contrast between the wholesome framing of a parent-child conversation and Bobby's sociopathic but internally consistent reasoning. It satirizes how evolutionary psychology, taken to its logical extreme without moral constraints, leads to monstrous conclusions.