sex-talk
Explanation
The Joke
A father is sitting on the edge of his child's bed at bedtime, clearly dreading the "birds and the bees" conversation. Instead of explaining where babies come from, he proposes an alternative approach: "What if instead I just tell you all the places babies DON'T come from?"
The Humor
The comic captures the universal parental anxiety around giving "the talk" about reproduction. The father's proposal to explain where babies do not come from is a hilariously transparent avoidance strategy. Since babies do not come from virtually everywhere in the universe -- not from trees, not from clouds, not from the mailbox, not from the dishwasher -- this approach would technically be accurate and informative while successfully dodging the one specific, uncomfortable answer the child is actually looking for. It is the logical equivalent of answering every question except the one being asked.
The humor also plays on the idea that the set of places babies do not come from is essentially infinite, meaning the father could theoretically talk forever without ever reaching the awkward part. It is procrastination elevated to a philosophical strategy.