Explain SMBC — the wiki for Saturday Morning Breakfast Cereal

The Joke

A woman excitedly tells a man that she has had her brain replaced by a transmitter. She explains that it interfaces with millions of small computers that float around the environment. Now that her consciousness is offloaded, she cannot be killed -- so when she is in an awkward situation, she automatically self-destructs, then joins the "ambient super-brain" until a new body is printed for her.

The man, rather than being impressed by this incredible futuristic technology, is angry. He asks what it cost, and says he cannot believe she bought this when she owes him $400 in rent. Caught in exactly the kind of awkward situation she was just describing, the woman begins stammering "Oh uh, well I, the thing is that--" and then presumably self-destructs to escape the confrontation. The final panel shows the man walking away alone, muttering "The future sucks."

The Humor

The comedy works on multiple levels. First, there is the absurd contrast between the mind-blowing nature of the technology (distributed consciousness, immortality, body printing) and the completely mundane problem it is being used to avoid: paying rent. Second, the technology creates a perfect escape hatch for irresponsible behavior -- if you can literally destroy your body and respawn whenever things get uncomfortable, there are zero consequences for anything, including stiffing your roommate. The man"s complaint that "the future sucks" captures the frustration of living in a world where amazing technology just enables people to be worse versions of themselves. The joke also satirizes how real-world technology often gets used for trivial or antisocial purposes rather than the grand visions its creators intended.