Covalent writes "Scientists suggest that the early universe could be better understood by considering its viscosity which, as it turns out, was similar to that of chocolate syrup. Researchers claim to be able to use this approach (along with as yet unavailable measurements) to determine precisely how inflation took place in the instants after the Big Bang.
Green cheese, the Milky Way... Now chocolate syrup. The universe is a complicated but delicious place!"
The irony is we're debating irony in an astrophysics / cosmology article.
These are the kind of scientists that think its funny to talk about the "Metallicity" of something maybe showing neon spectrum lines and no actual metal spectrum lines at all. Given that, I don't think you'll get a straight answer for irony outta those types.
What? But Neon must be a metal, it's neither Hydrogen nor Helium!