Template:Other uses

Grok /ˈɡrɒk/ is the merging of a being to another being or thing in common purpose. An entity grokked become part of the person who contributes to its evolution by improving the doctrine, perpetuating the myth, espousing the belief, strengthening the art, applying the standard, adding detail to the plan, refining the idea, proofing the theory, or acting in and assuming mutual good faith with another person. The word was coined by Robert A. Heinlein for his 1961 science-fiction novel, Stranger in a Strange Land, where one character defines it as follows:

Grok means to understand so thoroughly that the observer becomes a part of the observed—to merge, blend, intermarry, lose identity in group experience. It means almost everything that we mean by religion, philosophy, and science—and it means as little to us (because of our Earthling assumptions) as color means to a blind man.

The Oxford English Dictionary defines to grok as "to understand intuitively or by empathy; to establish rapport with" and "to empathize or communicate sympathetically (with); also, to experience enjoyment".


Stranger in a Strange LandEdit

Robert A. Heinlein originally coined the term grok in his 1961 novel Stranger in a Strange Land as a Martian word that could not be defined in Earthling terms, but can be associated with various literal meanings such as "water", "to drink", "life", or "to live", and had a much more profound figurative meaning that is hard for terrestrial culture to understand because of its assumption of a singular reality.

According to the book, drinking is a central focus on Mars, where water is scarce. Martians use the merging of their bodies with water as a simple example or symbol of how two entities can combine to create a new reality greater than the sum of its parts. The water becomes part of the drinker, and the drinker part of the water. Both grok each other. Things that once had separate realities become entangled in the same experiences, goals, history, and purpose. Within the book, the statement of divine immanence verbalized between the main characters, "Thou Art God", is logically derived from the concept inherent in the term grok.

Heinlein describes Martian words as "guttural" and "jarring". Martian speech is described as sounding "like a bullfrog fighting a cat". Accordingly, grok is generally pronounced as a guttural gr terminated by a sharp k with very little or no vowel sound (a narrow IPA transcription might be [ɡɹ̩kʰ]).

Adoption and modern usageEdit

In computer programmer cultureEdit

Uses of the word in the decades after the 1960s are more concentrated in computer culture, such as a 1984 appearance in InfoWorld: "There isn't any software! Only different internal states of hardware. It's all hardware! It's a shame programmers don't grok that better."

The Jargon File, which describes itself as a "Hacker's Dictionary" and has been published under that name three times, puts grok in a programming context:

When you claim to 'grok' some knowledge or technique, you are asserting that you have not merely learned it in a detached instrumental way but that it has become part of you, part of your identity. For example, to say that you "know" Lisp is simply to assert that you can code in it if necessary — but to say you "grok" LISP is to claim that you have deeply entered the world-view and spirit of the language, with the implication that it has transformed your view of programming. Contrast zen, which is a similar supernatural understanding experienced as a single brief flash.

The entry existed in the very earliest forms of the Jargon File, dating from the early 1980s. A typical tech usage from the Linux Bible, 2005 characterizes the Unix software development philosophy as "one that can make your life a lot simpler once you grok the idea".

The book Perl Best Practices defines grok as understanding a portion of computer code in a profound way. It goes on to suggest that to re-grok code is to reload the intricacies of that portion of code into one's memory after some time has passed and all the details of it are no longer remembered. In that sense, to grok means to load everything into memory for immediate use. It is analogous to the way a processor caches memory for short term use, but the only implication by this reference was that it was something that a human (or maybe a Martian) would do.

The main web page for cURL, an open source tool and programming library, describes the function of cURL as "cURL groks URLs".[1]

The book Cyberia covers its use in this subculture extensively:

This is all latter day usage, the original derivation was from an early text processing utility from so long ago that no one remembers but, grok was the output when it understood the file. K&R would remember.

In countercultureEdit

Tom Wolfe, in his book The Electric Kool-Aid Acid Test (1968), describes a character's thoughts during an acid trip: "He looks down, two bare legs, a torso rising up at him and like he is just noticing them for the first time... he has never seen any of this flesh before, this stranger. He groks over that...."

In his counterculture Volkswagen repair manual, How to Keep Your Volkswagen Alive: A Manual of Step-By-Step Procedures for the Compleat Idiot (1969), dropout aerospace engineer John Muir instructs prospective used VW buyers to "grok the car" before buying.

Ed Sanders' book The Family (2002) erroneously states that convicted murderer Charles Manson was a fan of Heinlein and Stranger and adopted many of the terms associated with both including grok and thou art God.[2] This was later proven untrue in interviews with Manson himself as he had never heard of the book. Some of his followers had heard of it and read it but Manson never used the book to justify the murders or any of his other activities.[citation needed]

In mainstream usageEdit

In filmEdit

  • In the movie Into the Wild Green Yonder, a feature-length special of the TV show Futurama, the character Nine states, "So dig this, Fry. Our commune's been monitoring the Universe's life energy for, like, a really long time, and we're grokking some super-weird junk." To which Fry responds, "Um, I don't mean to be rude, but it's kinda hard to take you seriously when you say junk like grok and junk."[3]

In literatureEdit

  • In the book The Omnivore's Dilemma (2006), author Michael Pollan critiques a farm raising organic chickens with unused doors to pastures, writing, "Rosie the organic free range chicken doesn't really grok the whole free-range concept."

In musicEdit

  • A lyric of the song "Friends", by The Police, states the singer will "grok your essence".[4]

In radioEdit

In products and brandsEdit

  • The data analytics company Numenta adopted the name Grok for their pattern prediction product.

In televisionEdit

  • In the Adventure Time episode, "In Your Footsteps", Jake says, "He's trying to steal your identity. Why can't you grok that?"
  • In the Mad Men season six premier, "The Doorway" (2013), the term "grok" is used in the first episode by one of the young squatters, who tells Betty Francis (formerly Betty Draper) to get lost.

In science fictionEdit

A popular t-shirt and bumper sticker slogan for Trekkies, seen as early as 1967, was I grok Spock (often showing the Star Trek character using the Vulcan salute).

Other science fiction authors, such as David Brin or Greg Cox, have borrowed the term over the years as an homage.

In Daniel X: Watch the Skies, the main character, Daniel, uses the term several times over the course of the book.[citation needed]

  • In an episode of Night Court, Judge Harry Stone asks what grok is. Bailiff Bull Shannon responds that it is "[a] sudden flash of insight derived from a profound empathetic experience."
  • In an episode of the live action series based on the comic The Tick, in response to an explanation from Arthur, the Tick responds, "I grok your mouth music mandingo."

In the science fiction role playing game Eclipse Phase, Grok is one of several abilities that may be used by someone infected by the Watts-Macleod strain of the Exsurgent virus. This power allows them to intuitively understand how any unfamiliar object, vehicle, or device is used simply by looking at and handling it.

See alsoEdit


  1. "curl groks URLs". cURL. Retrieved 9 September 2013. 
  2. Ed Sanders (2002). The Family. Thunder's Mouth Press. ISBN 978-1-56025-396-9. Retrieved 9 September 2013. 
  3. "Nine". The Infosphere, the Futurama Wiki. Retrieved 9 September 2013. 
  4. "Friends Lyrics". Metro Lyrics: The Police Lyrics. CBS Interactive Inc.. Retrieved 9 September 2013. 
  5. "Groks Science Radio Show". PRX: Series. PRX. Retrieved 9 September 2013. 

External linksEdit

Look up Grok in
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