闃寂

寂 = 叔 + 宀 : Joan of Arc (ji) has a philosophy doctoral viva with her uncle (叔) Arthur Schopenhauer (叔) in the space station's bathroom (Ø4), but she remains completely silent (寂) for the whole time. Arthur Schopenhauer is impressed by her nihilistic performance and hands her her well-earned graduation cap (宀).