Nature also abhors a vacuum salesman.

This quip riffs on the long-standing maxim “nature abhors a vacuum,” twisting it into a joke about sales culture. By inserting “salesman,” the line suggests that wherever there is an empty space—literal or metaphorical—someone will rush in to fill it with a pitch, a product, or persuasion. The humor depends on the double meaning of “vacuum” (emptiness vs. vacuum cleaner) and on the stereotype of the relentless salesperson. Read more broadly, it satirizes how commercial incentives can colonize gaps in attention, need, or silence, implying that absence itself becomes an opportunity to be monetized.