cosmic safety notice
Names: cosmic safety noticesafety notice
First appears in Book 3: Death's End, chapter 44 (Excerpt from A Past Outside of Time The Cosmic Safety Notice: A Lonely Performance Art)
Appearances
B1
B2
B3
What you know
Book 3: Death's End
- Ch 44A safety notice is a universal broadcast meant to convince all listening civilizations that Earth poses no threat, so it must be trusted by all.
- Ch 45Humanity longs for a safety notice proving it is harmless to the cosmos, but research shows it would need unknown, far more advanced technology.
- Ch 56The cosmic safety notice is a black domain around the Solar System, sealing it off so that outside observers see it as harmless or not at all.