teleporter
Explanation
The Joke
A person arrives on Mars via teleportation and is greeted with "Welcome to Mars!" They react with excitement -- "Wow! That was fast!" -- only to be told that the teleporter works by scanning the body, destroying the original, and reconstructing a copy at the destination. This is the classic "teleporter problem" in philosophy of mind: is the reconstructed person the same person, or did the original die and get replaced by a copy?
The comic then explores the implications. The greeter argues that "most human lives are susceptible to serious existential crises" anyway, and gives an example: "You lived your whole life assuming the French flag is red, white, and blue, and then you discover 'blue' is just a generic manner for 'worrying about advanced medical problems.'" The new arrival, rather than being relieved, becomes increasingly disturbed. The final panel has them asking "Can I just go home?" -- but of course, going home would require being destroyed and reconstructed again.
The Humor
The comic takes the well-known philosophical problem of teleportation and personal identity and layers additional existential crises on top of it, as if to argue that the teleporter problem is just one of many reasons to have an identity crisis. The humor comes from the greeter's casual, almost cheerful delivery of deeply unsettling information, and from the absurd non-sequitur about the French flag that is designed to illustrate how easily our assumptions about reality can be shattered. The trapped feeling of the final panel -- you can't go home without being destroyed again -- perfectly captures the claustrophobic nature of existential dread.
References
- The teleportation thought experiment is a staple of philosophy of mind, most famously discussed by Derek Parfit in "Reasons and Persons" (1984). Parfit used it to explore questions about personal identity and what makes someone the "same person" over time.
- The scenario is also reminiscent of the transporter problem in Star Trek, which has been debated by fans and philosophers alike.