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Explanation
This comic plays on the trope of a person returning after a long absence to find things have changed dramatically. A woman named Celine returns, and someone greets her enthusiastically, recalling how she "used to play video games all day" and was considered a hero. Back when their kids were young and Celine was doing her thing, they thought she was "a genius."
However, Celine's contributions were not what they seemed. She "contributed nothing" but her electricity bill, yet she claims it "helped" because of the processing her system was doing. The conversation escalates into a satirical commentary on cryptocurrency and GPU-intensive computing: the demand for faster parallel processing has driven up GPU prices, and this demand is connected to neural networks and AI, which in turn may lead to labor being "absurdized" as life becomes increasingly governed by AI systems.
In the final panel, the other person responds with resigned acceptance: "And all I can say is... you'll take me back." Celine, sitting in a chair, simply says "Forgive you." The humor derives from the absurdity of someone who essentially wasted years on computing being retroactively justified (or not) by the unintended consequences of the GPU and AI revolution. It satirizes how early adopters of seemingly pointless technology sometimes end up inadvertently contributing to massive societal shifts -- though not necessarily positive ones.