nessaan
Nessaan is a fictional term used in speculative fiction and worldbuilding to denote a form of collective memory access, in which individuals can experience or retrieve aspects of another person’s perception, memory, or sensory state. In most treatments, nessaan is presented as a voluntary, consent-based mechanism that operates within a defined social or technological framework. The term itself is a neologism created within authorial or fan-created worlds and does not have a widely recognized real-world etymology.
Etymology and conceptual variations: Because nessaan is recurring in multiple fictional settings, its precise meaning varies.
Usage and themes: In narrative contexts, nessaan is used to explore questions of identity, consent, power, and