In unison, the mosquitos injected their saliva into the wall. The area I was trying to clean immediately reddened and puffed up. Clippy offered the Wikipedia answer: “Machine code in the saliva is re-engineering the wall’s geometry, breaking away the vandalism and completely rebuilding the original.”

After a few moments, the mosquitos started heaving as they sucked the vandalized pixels out of the surface. Their abdomens swelled as they removed the graffiti.

A photo of small mechanical nanobots editing the molecular structure of a wall, framed like a David fincher film