‘Every last particle in the universe — from a cosmic ray to a quark — is either a fermion or a boson. These categories divide the building blocks of nature into two distinct kingdoms. Now researchers have discovered the first examples of a third particle kingdom….’
Via Quanta Magazine

An L ( almost ROTFL ) article, only barely getting started with the wonderfully off-hand, “(In quantum mechanics, you calculate the probability of what you observe by squaring this wave function, so this factor of −1 washes out.)”.
I have actually known several people who understand this stuff easily.
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