" The Python Darter has tremendous reflective qualities with its hammered finish on one side, and its smooth finish on the other side. 24 karat gold, genuine silver, or the chartreuse chrome finish ...

Surely, that much plastic would gunk up our cognitive machinery. You probably don’t have quite that much of the stuff in your brain, but the idea of any plastic piling up there is still unnerving.

In the most extreme case, the researchers estimated the brain was 0.48% plastic, meaning the particles added up to a couple of grams — the weight of a typical plastic spoon.