Comment by liquidise

In general their article's use of "Fermion" clashes with my understanding. I've understood fermions[1] to be a type of sub-atomic particle, like an electron. The article routines refers to them as if they are atoms themselves, including your quoted test.

I presume the MIT literature knows more than i do here, but i'm unsure what i am missing. Anyone have an idea?

1. https://en.wikipedia.org/wiki/Fermion