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{{Short description|1939 short story by American author Robert A. Heinlein}}
{{Other uses|Lifeline (disambiguation)}}
{{Use mdy dates|date=March 2025}}
"'''Life-Line'''" is  a short story by American author [[Robert A. Heinlein]].  Published in the August 1939 edition of ''[[Astounding (magazine)|Astounding]]'', it was Heinlein's first published short story.

The protagonist, Professor Hugo Pinero, builds a machine that will predict how long a person will live.  It does this by sending a signal along the [[world line]] of a person and detecting the echo from the far end.  Professor Pinero's invention has a powerful impact on the life insurance industry, as well as on his own life.

Pinero is mentioned in passing in the novels ''[[Time Enough for Love]]'' and ''[[Methuselah's Children]]'' when the practically immortal [[Lazarus Long]] mentions having been examined and being sent away because the machine is "broken".

==Writing history==
Heinlein was motivated to write the story by an editorial in ''[[Wonder Stories|Thrilling Wonder Stories]]'' magazine, in which [[Hugo Gernsback]] wrote that he wanted to foster new talent in the field, and that "We shall endeavor to present one amateur writer's story in each forthcoming issue [...] until further notice."<ref>{{cite book|last=Gifford|first=J. Daniel|title=Robert A. Heinlein: A Reader's Companion|pages=110–111|isbn=0967987415|publisher=Nitrosyncretic Press|date=2000}}</ref> ''Thrilling Wonder Stories'''s rate at the time was 0.5¢ per word. After Heinlein had written the 7,000-word story, he submitted it first to a rival magazine, ''[[Astounding (magazine)|Astounding]]'', which paid 1¢ per word. ''Astounding'' bought the story, and at their higher rate, Heinlein was paid $70 ({{Inflation|US|70|1938|fmt=eq|r=-1}}).

According to [[Virginia Heinlein]]'s introductory biography of her husband in ''[[Grumbles from the Grave]]'', upon receiving the check for the story Heinlein reportedly said, "How long has this racket been going on?" Later, Heinlein's authorized biography included a version of the story in which ''Thrilling Wonder Stories'' had advertised a $50 contest.<ref name=Patterson>{{cite book|last=Patterson|first=William H. Jr.|title=Robert A. Heinlein: In Dialogue with His Century, Volume 1: Learning Curve, 1907–1948|date=2010|publisher=Tor|isbn=978-0-7653-1962-3|pages=215–216}}</ref> The first known version of this story appeared in a 1985 interview published in ''[[Xignals]]'', a science fiction newsletter.<ref name=Patterson /><ref>{{cite book|last=Heinlein|first=Robert A.|title=The Nonfiction of Robert Heinlein: Volume II|edition=Virginia|volume=38|publisher=Virginia Edition Publishing Company|date=2010|isbn=9781897350430}}</ref>

"Life-Line" was later collected in ''[[The Worlds of Robert A. Heinlein]]'' (1966), ''[[Expanded Universe (Heinlein)|Expanded Universe]]'' (1980), and in a [[Baen Books|Baen]] edition of ''[[The Man Who Sold the Moon (short story collection)|The Man Who Sold The Moon]]'' (1987).

==Reception==
One particular paragraph from "Life-Line" is often quoted in reference to (and criticism of) modern [[Intellectual property|intellectual property rights]]:<ref>{{cite journal|first1=Lisa McHugh|last1=Cesarini|first2=Paul|last2=Cesarini|title=From Jefferson to Metallica to your Campus: Copyright Issues in Student Peer-to-Peer File Sharing |journal=Journal of Technology Studies |issn=1541-9258 |year=2008 |volume=34 |issue=1 |url=http://scholar.lib.vt.edu/ejournals/JOTS/v34/v34n1/cesarini.html|access-date=2016-11-24}}</ref><ref>{{cite journal |last=McClure |first=Ian |title=Be Careful What You Wish For: Copyright's Campaign for Property Rights and an Eminent Consequence of Intellectual Monopoly |journal=Chapman Law Review |year=2007 |volume=10 |issue=3 |url=http://www.ipprospective.com/wp-content/uploads/2009/01/be-careful-what-you-wish-for.pdf |access-date=2012-05-04}}</ref>

{{blockquote|There has grown in the minds of certain groups in this country the idea that just because a man or corporation has made a profit out of the public for a number of years, the government and the courts are charged with guaranteeing such a profit in the future, even in the face of changing circumstances and contrary to public interest. This strange doctrine is supported by neither statute or common law. Neither corporations or individuals have the right to come into court and ask that the clock of history be stopped, or turned back.}}

In the realm of science another passage has come to be quoted:

{{Blockquote|There are but two ways of forming an opinion in science. One is the scientific method; the other, the scholastic. One can judge from experiment, or one can blindly accept authority. To the scientific mind, experimental proof is all important and theory is merely a convenience in description, to be junked when it no longer fits. To the academic mind, authority is everything and facts are junked when they do not fit theory laid down by authority.}}

A [[Lifeline (web series)|television web series]] loosely based on the short story began in 2017.

A short film adaptation directed by Zack Dodson and produced by Eric R. Gignac was released in 2022.<ref>{{Cite AV media |url=https://www.imdb.com/title/tt17520502/reference/ |title=Life-Line (2022) - IMDb |access-date=2025-05-23 |via=www.imdb.com}}</ref>

== References ==
{{Reflist}}

== External links ==
* {{ISFDB title|41208|short=y}}
* [https://archive.org/stream/Astounding_British_Ed._v01n01_1939-08#page/n59/mode/2up "Life-Line"] on the [[Internet Archive]]

{{Future History}}

[[Category:1939 short stories]]
[[Category:Short stories by Robert A. Heinlein]]
[[Category:Works originally published in Analog Science Fiction and Fact]]


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