In 1984, the US Department of Energy commissioned Thomas Sebeok to solve an unprecedented problem: how to warn future populations of the presence of highly radioactive nuclear waste stored at Yucca Mountain, Nevada. Duration of material hazard: ten thousand years. Required duration for the warning system: identical.
The problem is not technical. It is semiotic.
No living language has a life expectancy of ten thousand years. Cuneiform writing is four thousand years old and remains partially illegible. Contemporary English will be unrecognizable in five hundred years. Classical Latin survived two thousand years only because an institution maintained its transmission deliberately and continuously. No current institution can guarantee its own existence over ten thousand years.
Sebeok proposes two complementary solutions. The first is material: monumental physical markers, designed to be perceived as threatening regardless of culture, sharp forms, disturbing surfaces, hostile geometries. The second is institutional: an atomic priesthood, a caste of guardians who would transmit knowledge of danger from generation to generation, encoded in myths whose deep meaning would be reserved for initiates. He proposes to manufacture a religion.
The first postulate does not hold up to examination. No form is universally threatening. What signifies danger in 2026, sharp points, irregular surfaces, aggressive geometries, has been perceived as sacred, aesthetic or prestigious in different cultural contexts. The pyramid is a sharp form. The menhir is a disturbing surface. Gold fangs are ornaments. The aesthetic of danger is itself a cultural production, subject to the same erosion as language. The Human Interference Task Force working group raises an even deeper objection: any marker effective for warning of danger simultaneously signals the presence of something important. The warning is an invitation for those who do not understand it. Egyptian tombs were marked with curses, which did not prevent their pillaging.
Meaning erodes. Not the support. Meaning.
A granite stele can last ten thousand years. The meaning engraved on it will not follow the same calendar.
The final solution adopted for the WIPP site in New Mexico combines physical markers, archives in seven languages, astronomical charts to date the site independently of the calendar. It rests on the postulate that civilizations capable of reading these documents would also be capable of respecting them. This postulate is unverifiable by definition.
Researchers have proposed a radically different alternative: genetically modify plants or microorganisms so they change color in the presence of radiation. The archive would no longer be a monument. It would be an ecosystem, living, evolving, readable without language, without institution, without deliberate transmission. A biological sentinel that reads by direct observation rather than by decipherment. This proposition shifts the question of the archive toward the living, but it introduces a new fragility: an ecosystem can become extinct, mutate, be supplanted. The living archive is more readable but less durable. The stone archive is more durable but less readable. The problem is not resolved. It is displaced.
Doctrine
Every archive is an attempt to cross an abyss whose dimensions are unknown. What is revealed in trying is not the solution to the problem of transmission. It is the exact form of what cannot be known about what comes after us.
Yucca Mountain is the operational definition of radical ignorance. We have engraved our certainties there for people whose language, categories, fears, desires we do not know. What we call warning perhaps calls itself something else in their vocabulary, if this vocabulary exists.
Vecteur ouvert
Radioactivity diminishes according to calculable half-lives. What is deadly today will be harmless in one hundred thousand years. The correct message changes with the time it crosses. An honest archive should therefore modify itself, attenuate, change register, finally fall silent. Can we conceive a document whose urgency decreases as it ages, and which knows when to cease warning?
