the-dimension-store
Explanation
The Joke
A cosmic being visits a "Dimension Store" to buy dimensions for a universe it is building. The salesperson recommends 26 dimensions for the best of all possible universes, and suggests at least a few time dimensions to permit easy transit through space. The customer says it can only afford exactly four dimensions, and only one of them can be time. The salesperson is dismayed, essentially asking why even bother with such a meager universe.
The customer, annoyed, insists it did not come for a lecture and just wants to make a quick, cheap universe. In the final panel, the salesperson looks at the resulting bare-bones universe (which is clearly our universe) and asks skeptically, "This is just a display universe, right? Like it is a minimalism thing? You are not growing life in there, are you?" The customer nervously replies, "I, uh... no."
The Humor
The comic imagines the creation of our universe as a budget shopping trip, treating the fundamental structure of reality as a consumer product. The humor comes from reframing the deepest questions of physics and cosmology -- why does our universe have exactly four dimensions (three spatial, one temporal)? -- as the result of a deity being cheap. The 26-dimension recommendation is a nod to string theory, which requires 26 dimensions in its bosonic formulation. Our four-dimensional universe is presented as the bare minimum, a discount model that the salesperson clearly considers inadequate for supporting life -- making the existence of life within it seem like an irresponsible decision, like keeping fish in a bowl that is far too small. The final panel, where the creator guiltily denies growing life in this cut-rate universe, suggests that our entire existence is something of an embarrassing mistake.
References
The comic references string theory, which in its original bosonic formulation requires 26 spacetime dimensions (later superstring theory reduced this to 10, and M-theory to 11). Our observable universe has four dimensions: three spatial dimensions and one time dimension. The salesperson mentioning "the best of all possible universes" is likely a play on Leibniz's philosophical claim that we live in "the best of all possible worlds." The concept of multiple time dimensions has been explored in theoretical physics, with some physicists noting that more than one time dimension would allow for unusual causal structures.