Tehases

Tehases are a fictional concept used in worldbuilding and speculative fiction to describe a class of memory artifacts or ceremonial tools. In common usage, a tehase refers to a portable object that can store experiential data—memories, stories, or learned skills—and access to the stored content is mediated by a contextual ritual or interface. The same object may encode different content for different users, reflecting the personal or communal nature of the memory stored.

Form and variants: Tehases are typically described as small tablets, crystals, or carved objects. Some versions require direct touch, others use spoken commands or symbolic gestures. The encoding of memory is often presented as externalized cognition, with traces linked to patterns, glyphs, or tonal signatures. In some narratives, tehases can be duplicated or copied, raising questions about authenticity and memory fidelity.

Social function: In fiction, tehases serve as anchors of identity, lineage, and education. They may be used in rites of passage, to preserve collective history, or as tools for mentorship and apprenticeship. Ethical concerns—consent, manipulation of memories, and coercive use—are common themes in stories that involve tehases, shaping how characters relate to the past and to one another.

Origins and reception: The term “tehase” does not refer to a real-world technology and has no standardized etymology beyond its fictional usage. Writers and designers employ the concept to explore the cultural impact of memory technologies, memory ownership, and the boundaries between personal experience and recorded history.