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DRAFTING Teresa Villarreal born 1883, date of death unkown Mexico and Texas Sacajawea Revolutionary labor and feminist organizer, who supported the Partido Liberal Mexicano (PLM) during the Mexican Revolution of 1910–1917


Tetisheri c. 1650 BC Egypt Hatshepsut Mother of the New Kingdom

Thalestris c. 325 BC Asia Minor Amazon Amazon queen

The Furies Mythical Greece Kali The Roman goddesses of vengeance who killed Clytemnestra, among other tales

The Norns Mythical Norway Kali The Norse goddesses of fate

The term extropy is a proposed measure of a system's intelligence, sentience, knowledge, adaptability, power, aliveness, vitality, diversity, complexity and capacity for growth. The more a system possesses these attributes the higher its extropy.

Extropy measures information rich order , that is the order in a system which is structured by embedded information about conditions outside the system. The similar term entropy also measures order and takes on a lower value as a system becomes more ordered, however if has difficulty in representing the nature of the order. Thus a crystal structure is highly ordered but contains no embedded information. A DNA molecule has structure and also information coded within it.

Extropy is also loosely used as the antonym of entropy, because it increases as things become more ordered and decreases as they become chaotic which is the inverse of entropy .[2][3] Systems with a high extropy have a low entropy because they are highly ordered. But conversely systems with a low entropy may not have a very high extropy because although they are ordered , that order does not contain information about the systems surroundings.

For example nucleic acids in solution have less extropy than those stored separately in test tubes and less still than those that form part of a DNA molecule that describes a viable organism. [4]

The word was coined by Tom Bell (T.O. Morrow) and defined by Max More in January 1988 as:-

"the extent of a living or organizational system's intelligence, functional order, vitality, energy, life,experience, and capacity and drive for improvement and growth."

It is a measure of intelligence, its knowledge, power, life, vitality, diversity, complexity and capacity for growth. It is the opposite of entropy . This concept was developed TO Morrow (real name Tom Bell) in January 1988. The concept was elaborated extropista Max More . Extropisti claim to spontaneous order, which in their opinion is promoting decentralized and voluntary processes of governance, the promotion of tolerance, free market, diversity of thinking long-term view, personal responsibility and freedom.

Extropy expresses a metaphor, rather than serving as a technical term, and so is not simply the opposite of entropy, although it is also considered the appropriate antonym

Extropy is donated an uppercase Greek letter Pi thus Π. The change in extropy is more interesting than its absolute value.

From Fossils to Astrobiology : Records of Life on Earth and the Search for Extraterrestrial Biosignatures. edited by Joseph Seckbach, Maud Walsh, 2009, page 376

Extropy has its law, too. It was first formulated by Edward Harrison:“Hydrogen is a light, odorless gas, which, given enough time, turns into people.”Just make it a tiny bit more general and update the terminology, and you get:“Large enough systems tend to form subsystems in which extropy grows.”


One who seeks to overcome human limits, live indefinitely long, become more intelligence, and more self-creating. A transhumanist who affirms the values and attitudes codified and expressed in The Extropian Principles. [Max More, 1988]

Use in Popular culture[edit]

The rock band CHAOTROPE titled a song Extropy/Entropy.

See also[edit]


  1. ^ [ test]
  2. ^ About the complexity evalustions of large structured objects. Tonu Lausmaa, Proceedings of the Estonian Academy of Sciences, Physics and Mathematics Sep 2005
  3. ^ On informational properties of covers Tonu Lausmaa, Proceedings of the Estonian Academy of Sciences, Physics and Mathematics Jan 2005
  4. ^ Kevin Kelly on Extropy - Kevin Kelly at The Technium , August 29, 2009


External links[edit]