Modern

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Modern is a modifier to describe headmates, groups, layers, and similar, in dissociative systems which handle current daily life. Meanwhile, "younger-age" trauma experiences are kept sectioned off on other layers and/or handled by other members. This sectioning off generally comes with strong amnesic barriers for younger-age trauma, and modern layer parts may be completely unaware of the existence of other layers at all.

Modern Layers
Creation of modern layers happens in order to hide younger-age trauma from the current active fronters, and there may or may not be multiple "old modern layers" that have fallen out of use present in the system as new modern layers were needed over the course of childhood to hide overwhelming trauma from new fronters, which may appear as system resets. Alternatively, there may be only one modern layer present in the system with younger-age trauma being continuously sectioned off into trauma-holding layers so that the trauma is constantly kept separate from the modern parts.

Modern Parts
Any member of a modern layer may be considered a modern part.

These are often parts who were split during the past several years who hold little or no memory or understanding of the body's life prior to that part's splitting. Modern parts tend to be in denial of, amnesic for, or downplay the body's past or trauma prior to their split dates, though modern EPs may exist who hold "modern trauma" (ie., trauma which happened after the formation of the modern layer and was not sectioned off for whatever reason).

Modern EPs may exist on modern layers to obscure non-modern trauma by holding "cover up trauma". The system may believe that the entirety of their trauma is held by the EPs on the modern layer, which further hides non-modern EPs/trauma holders from the modern layer's awareness.

History
"Modern" terminology was coined by post manic apology tour on Discord to describe both layer functions and system member functions. The terms can be changed around to suit the system using it (ex., "modern headmate" instead of "modern part").

Related Terms
Each layer may hold members of an epoch / era or district, and each layer may be its own sisasystem.

With new modern parts or layers, a system may go through front rotation and be considered cytien, or go through a system shift with the newly modern layer becoming the primary system.