#2216: Percent Milkfat

XKCD comic, described below.
Transcript

[Ponytail, raising her palm, and Cueball are talking.]

Ponytail: "2% milk" is 2% milkfat. But "whole milk" isn't 100% milkfat–it's 3.5%.

Cueball: Weird. What's the rest of it?

Ponytail: About 27% is dark matter. The remainder is dark energy.


(Sourced from explainxkcd.com)

"So what's dark energy?" "Cosmologists and the FDA are both trying very hard to find out."

ExplainOriginal