Editing Blank (section)

==Nomenclature and Classification==
The terms ''"Null", "Pariah", "Blank",'' and ''"Untouchable"'' often get used interchangably in the fluff and by [[Fa/tg/uys]]. Though it is evident that they are not synonyms, though the exact distinction between them remains largely unstated and can only be extrapolated by comparing various sources.

The Imperium uses a 24-point scale known as '''The Assignment''' to classify just how powerful a [[Psyker]] is based on the Greek alphabet, with '''Rho''' and '''Pi''' being baseline humans smack bang in the middle. Below Rho and all the way down to Omega officially classifies how psychically inert a person is with increasing degrees of anti-psyker effectiveness the further down the classification one descends.

Since the Pariah ''Gene'' is an actual thing, the term ''"Pariah"'' should refer to those who actually possess it and serves to distinguish them from others who are psy-inert for various other reasons such as by ritual soul scarring or by exorcism. For example, a member of the [[Exorcists]] chapter might have no psychic signature, be resistant to warp effects, and immune to further possession, but isn't the same as a Pariah. The term also serves to distinguish them from members of xenos species who might be psy-inert but could never possess the pariah gene in the first place ''(such as the [[Solitaire]])''.

Just because someone possess the Pariah gene or happens to be psy-inert does not automatically make them an Untouchable or a Blank either. [[Rob Sanders]] novel ''Atlas Infernal'' creates a firm distinction and clarifies that ''"Some of these individuals had degrees of immunity to psychic powers and the energies of the warp; some - known as Untouchables or Blanks - had fields so powerful that their presence disrupted the powers of or wounded psychic beings"'' and later refers to blacksouls being cloned for various purposes. In [[Dan Abnett]]'s novel ''Pariah'', a couple of Word Bearers complained that the protagonist, a Pariah, was barely even a Blank, let alone a Blacksoul. Further clarifying the difference between the terms Pariah, Blank and Blacksoul in terms of meaning and potency.

Therefore it's clear that the distinction of '''"Blank"''' or '''"Untouchable"''' is reserved for those inert individuals who actively inhibit psychic powers around them while the additional differentiation for '''"Blacksoul"''' appears to be reserved for only the most potent of Untouchables.

The term '''"Null"''' seems to exist as a catch-all term for anything regarded as psy-inert, such as [[Sisters of Silence|Null Maidens]] honing their "Null Abilities", and the Imperium has technology for manipulating "Null Fields" with "Null Weapons" and even untouchable [[Culexus]] Assassin are referred to as "Nulls" or "Null-Entities" in various sources. It is likely that the masses of humans who exist below ''Rho'' on the assignment scale would be easily classified as Nulls, even if they are not true blanks or untouchables.

So basically, a Null may not necessarily be a Pariah or an Untouchable/Blank/Blacksoul. But an Untouchable/Blank/Blacksoul will definitely be a Null regardless of possessing the Pariah gene. While the possessor of the Pariah gene can potentially be any of the above.