Universal long-term memory system (以太 / Aether) for AI personas.
Loads cross-session memory at session start, tracks events, persists
everything to disk — old memories are archived, never silently deleted.
7 modules: semantic profile, permanent notes, episodic memory,
relationship map, behavioral memory, emotional sediment, memory archive.
Use whenever: a persona needs to remember users across sessions, a user
says "do you remember me", continuity from prior conversations is expected,
or the user asks to save / load / remember / forget things.
2026-04-13