Explain SMBC — the wiki for Saturday Morning Breakfast Cereal

The Joke

Two people discuss the ethics of teleportation. One argues that it is unethical to put someone in a teleporter because it destroys the original and creates a copy, meaning "you're killing them." The other counters that if something is put in the teleporter and it functions identically, has the same memories, and continues its existence, it is "probably unethical to go up and yell in their face 'you don't exist!'" They then discuss a scenario where a baby could be teleported -- the baby would not remember the process and would function normally. The conversation escalates to the point where they note that babies are already "not in teleporters" and there is a "discontinuity in space" where you could just grab one. One character realizes "this is the talk where you try to convince me to help you steal a baby" and the other insists it is actually a philosophical discussion, though someone has apparently "figured it out by this time."

The Humor

The comic begins as a seemingly earnest philosophical discussion about the teleportation paradox (also known as the "teletransportation paradox" or related to the Ship of Theseus problem) -- whether a teleported copy is the same person as the original. However, it gradually becomes clear that one character is using philosophical argumentation as an elaborate pretext to convince the other to help kidnap a baby. The humor lies in the slow reveal that the "thought experiment" was never abstract at all, and in the other character's dawning horror at realizing the conversation's true purpose. It satirizes how philosophical reasoning can be twisted to justify anything if you are sufficiently motivated.

References

The teleportation paradox is a well-known thought experiment in philosophy of mind, most famously discussed by Derek Parfit in "Reasons and Persons" (1984). It asks whether a person who is disassembled and perfectly reassembled elsewhere is the same person or a copy. The Ship of Theseus is a related classical paradox about identity and persistence.