Invert

Invert (pronounced in-vurt)

(1) To turn upside down.

(2) To reverse in position, order, direction, or relationship.

(3) To turn or change to the opposite or contrary, as in nature, bearing, or effect; to turn something inward or back upon itself; to turn inside out.

(4) In chemistry, to a subject a substance to a reaction in which a starting material of one optical configuration forms a product of the opposite configuration; subjected to a reaction in which a starting material of one optical configuration forms a product of the opposite configuration.

(5) In music, to subject to musical inversion, the transposition between the upper voice part and the lower (to move the root note of a chord up or down an octave, resulting in a change in pitch).

(6) In phonetics, to articulate as a retroflex vowel; to turn the tip of the tongue up and back.

(7) In formal logic, to form the inverse of a categorical proposition.

(8) In psychology & psychiatry, a person who adopts the role of the opposite sex (historically used in clinical practice and law enforcement as an alternative word for homosexual.

(9) In civil engineering (particularly hydrology), the lower inner surface of a drain or sewer; the lowest point inside a pipe at a certain point.

(10) In Architecture, an arch that is concave upwards, especially one used in foundation work; the base of a tunnel on which the road or railway may be laid and used when construction is through unstable ground (and may be flat or form a continuous curve with the tunnel arch).

(11) A sometimes used synonym for divert in certain contexts; to convert to an incorrect use.

(12) In anatomy, to turn the foot inwards.

(13) In biochemistry, as invertasome, a nucleoprotein complex that causes inversion of a DNA sequence.

(14) In skateboarding, a technique in which the skater grabs the board and plants a hand on the coping so as to balance upside-down on the lip of a ramp.

(15) In zoology, an informal term for an invertebrate.

1525–1535: From the Middle French invertir, from the Latin invertere (to turn upside down or inside out), the construct being in- (in) + vertere (to turn), an inflection of vertō (I turn; I change; I reverse), from the Proto-Italic wertō, from the primitive Indo-European wértti from the root wer- (to turn; to bend).  It was cognate with the Sanskrit वर्तते (vártate (to turn)), the Sanskrit वर्तयति (vartáyati (to turn)), the Avestan varət, the Proto-Slavic vьrtěti, the Old Church Slavonic врьтѣти (vrĭtěti (to turn around)), the Polish wiercić (to drill; to fidget), the Russian вертеть (vertetʹ (to rotate)), the Proto-Baltic wert-, the Lithuanian ver̃sti, the Persian گرد‎ (gard (grow; turn)), the Proto-Germanic werþaną (to become), the Old English weorþan (to happen), the English worth and the Old Irish dofortad (to pour out).  The prefix -in is quirky because it can act either to negate or intensify.  The general rule is that when pre-pended to a noun or adjective, it reinforces the quality signified and when pre-pended to an adjective, it negates the meaning, the latter mostly in words borrowed from French.  The Latin prefix in- was from the Proto-Italic en-, from the primitive Indo-European n̥- (not), the zero-grade form of the negative particle ne (not) and was akin to ne-, nē & nī.  In Modern English it is from the Middle English in-, from Old English in- (in, into), from the Proto-Germanic in, from the primitive Indo-European en.  In the Classical Latin, invertere had the literal sense of "turn upside down, turn about; upset, reverse, transpose" and was used figuratively to suggest "pervert, corrupt, misrepresent" while when used of words it implied "being used ironically". Invert, invertibility & inverting are nouns, verbs & adjectives, inversion, inversion & inverter are nouns, inverted is a verb & adjective, invertible & inversive are adjectives and invertedly is an adverb; the noun plural is inverts.

Pittsburgh Police arrest card #25747, from 1932 which circulated on the internet after being published in Least Wanted: A Century of American Mugshots (2006) by Mark Michaelson, Steven Kasher & Bob Nickas.  Some thought the “Crime” noted was “Invert” (and thus suggesting the offence was homosexuality) or the word was “Invest” what was police slang for “investigate”.  There appears to have been a typo and the correct letter could be either “v” or “s” but it seems most likely he was being investigated as a suspected communist.

Richard Fridolin Joseph Freiherr Krafft von Festenberg auf Frohnberg, genannt von Ebing (1840-1902) was a German psychiatrist remembered for his seminal work Psychopathia Sexualis: eine Klinisch-Forensische Studie (Sexual Psychopathy: A Clinical-Forensic Study) (1886).  Fortunately for all, for most purposes he shortened his name to Richard von Krafft-Ebing and was recognized as perhaps the first acknowledged expert on matters of sexual deviance, his publications either creating or formalizing the diagnostic categories which would remain influential for decades and some of his work remains recognizable in the literature even today.  One of his terms was "sexual inversion" which he used to describe homosexuality and it appeared in the first edition of the American Psychiatric Association's (APA) Diagnostic and Statistical Manual of Mental Disorders (DSM), published in 1952.  Dr von Krafft-Ebing had used sexual inversion as a purely descriptive term for homosexuality, reflecting the academic tone he adopted in the hope those other than in the professions of medicine or law would be discouraged from turning the pages.  Very much seriously minded, he didn’t write to satisfy prurient interest.  He did however definitely regard sexual inversion as deviant and in this sense it carried over to the DSM where it was listed as a mental disorder although the operation of the linguistic treadmill meant that when the DSM-II was issued in 1968, the term was replaced with “homosexuality”.  From then on, the profession moved in the last quarter of the twentieth century as legislative change would unfold in the Western world, sometimes moving ahead of the law, sometimes following.  When the fourth edition of the DSM-II was published in 1974, the APA tested the waters by introducing a sort of diagnostic ambivalence about the matter and with the coming of the DSM-III (1980), homosexuality ceased to be considered a mental disorder and was treated as just another variation in the human condition.

Lindsay Lohan contemplating the subliminal messaging of The McDonalds big “M”, McDonald's drive-thru, Santa Monica, California, December 2011.  The car is a Porsche Panamera.

A contemporary of Dr von Krafft-Ebing was of course the Austrian psychoanalyst Sigmund Freud (1856-1939), someone who thought much about the centrality of sex to the human condition and, famously, the role of mothers in its formation.  One admirer (though by no means an uncritical one) of Dr Freud was the Russian-born, US-based clinical psychologist Louis Cheskin (1907-1981) who systematized a process of analysis which tracked the relationship between the aesthetic elements (ie the packaging) of products with customers’ perceptions of the content; this he called “sensation transference”.  Some of his best known work was in colors, working out how people generally understood the messages conveyed by different hues and he applied his findings with great success to product wrappings, corporate logos and even the interior color schemes for department stores and restaurants.  According to him, a restaurant which wants its customers to linger might use blue while a fast-food outlet which wants a high turnover of it chairs and tables should favor orange or yellow.

A practical application of Freud via Cheskin: Charlotte McKinney’s (b 1993) famous advertisement for Carl's Jr. Restaurants LLC, Super Bowl XLIX, 2015.

Already famous from his work with the Ford Motor Company, notably for his collaborations with the company’s general manager Lee Iacocca (1924–2019) during which he conducted the research which contributed to the marketing campaigns for the wildly successful Mustang (1964) and Lincoln’s Continental Mark III (1968), Cheskin was retained as a consultant by McDonald’s, then in the throes of one of their periodic changes to the corporate logo.  At the time, McDonald’s management wanted to refocus the business and one aspect of this was to change the stylized “M” (the golden arches), then thought dated.  In this case Louis Cheskin followed Freud and wrote one of his persuasive papers which convinced the executives the big “M” was a asset because, as well as the obvious association with the McDonald’s name, there was also a culinary cum anatomical link: If the “M” was inverted, it summoned in the mind the nurturing image of a mother’s breasts, “subconsciously making hungry customers feel comforted and at home”.  Whether the chain’s slogan at the time (Give mum a night off) was influential in the decision to retain the (uninverted) “M” isn’t clear.”

Evolution of the big “M” since 1942 (left) and inverted (right).  One can see what Louis Cheskin was getting at.

Recto & Verso

Recto (pronounced rek-toh)

(1) A right-hand page of an open book or manuscript (almost always bearing the odd numbers); the front of a leaf.

(2) The front of a loose sheet of printed paper

1815–1825: A clipping of the Late Latin phrase rēctō foliō (on the right-hand (leaf or page)), ablative of the Latin rēctus (in this context “right”).  Recto is a noun; the noun plural is rectos.  The Latin rēctus (past participle of the verb “regere” (to rule; to guide; to straighten) and perfect passive participle of regō (to keep or lead straight, to guide)) was from the Proto-Italic rektos, corresponding to the primitive Indo-European hreǵtós (having moved in a straight line), from reǵ- (to move in a straight line; to direct).  It was used to mean “straight”, “upright” and “correct” as well as “right”.  In general use it was used in the sense of “right, correct, proper, appropriate, befitting with a particular emphasis on “morally right, correct, lawful, just, virtuous, noble, good, proper, honest”.  The association with “straightness” and “rightness” also influenced other derivatives in Latin and Romance languages, such as rectum (straight (and its use in anatomy)), rectitude (moral uprightness) and words in modern languages (rectify, direct etc).

Verso (pronounced vur-soh)

(1) A left-hand page of an open book or manuscript (almost always bearing the even numbers); the back of a leaf.

(2) The back of a loose sheet of printed paper.

(3) In numismatics, the side of a coin opposite to the obverse (the reverse)

1830–1840: A clipping of the New Latin phrase versō foliō (the leaf having been turned; the turned side of the leaf; on the turned leaf), the construct built with the Latin verb vertere (to turn; to revolve; to change) + folium (a leaf). 

Vertere ultimately was from the primitive Indo-European root wert- (to turn; to rotate).  Verso was the ablative form of versus (turned; facing; a line or verse in poetry, (originally meaning “a turning of the plow”), thus, as used in versō foliō , the reference was to the back (reverse) side of a page in a book or manuscript (as opposed to the recto (the front side).  The primitive Indo-European root wert- also provided the ultimate source of a number of related words in Indo-European languages, all of which is some way emphasize the concept of “turning” or “change”, the modern descendants including verse, invert, revert, and versatile, all of which preserve the idea of turning or changing orientation.  Verso is a noun; the noun plural is versos.

Recto is the front (right) and verso the back (left) side of a leaf of paper in something assembled permanently (ie bound or in some way joined permanently at the spine) in a book, codex or such.  The terms have always been used to refer to the finished article, not the material used in production.  This was not something of significance when books were assembled from single sheets which then were bound but in mechanical printing, it became common for larger sheets (the folium) to be printed with many pages, later to be folded (prior to binding) so the numbers on those larger sheets weren’t sequential when the page was flat but became so when folded.  Rēctō foliō (on the right side of the leaf) and versō foliō (on the back side of the leaf were thus created in the bindery, not by the scribe).  The use of the terms for loose leaf sheets came later.

Recto & Verso are sometimes referred to as part of the architecture or archeology of printing, correctly, they’re an aspect of codicology (the study of codices) and there is some academic dispute about the origins, the Australian historian Martyn Lyons (b 1946) suggesting the term rēctum (right, correct, proper) for the front side of a leaf was derived from the use of papyrus in late antiquity, based on a different grain running across each side with on one suitable for writing upon (the “correct”, smooth side).  In an echo of that, even modern paper has a “grain” (by virtue of the way the pulp is laid in the production process) and when using heavily textured bond paper, the most fastidious technicians ensure the stock is “laid” the “correct” way.  Recto and verso are reversed when language read right-to-left are used (so regardless of language, the verso is read first).  In publishing, the convention is for the first page of a book (page 1) to be a recto so almost all recto pages have odd numbers and all versos even numbers.

On-line editions of publications are not simply digital replications of the layout used in print where the recto-verso model remains in use.  The migration to screens has been cited as the prime reason the “two-page spread” is now less common in print.

With the coming of computers, pages came to be viewed on screens and as technology improved, it became possible to display two pages, side-by-side, thereby permitting publications such as pictorial magazines to maintain the recto-verso model and for readers to consume the content presented in the same visual format as the printed edition.  However, the screens of eBook readers, smartphones and tablets have a smaller surface area than the typical computer monitor and tend to be optimized for single-page display (although may do have a two-page option).  For that reason, publications which maintain both traditional print editions and on-line versions, have been compelled to create a different visual model for each format (there can be several) because the old “two-page spread” simply doesn’t work was well, viewed a page at a time.  The layout of on-line content is not simply a replication of a print edition (which follows the classic recto-verso model) and it seems clear the small has had a great influence on the large.

Louis Vuitton Recto Verso in Monogram Empreinte leather (left) and Louis Vuitton Pochette Cles (Vivienne collectors edition). 

Lindsay Lohan with Louis Vuitton Pochette Cles (key pouch) from LV’s Vuitton Monogram Charms collection.  

Among the many problems troubling the world, some have to ponder whether to buy a Louis Vuitton Recto Verso card holder or a Louis Vuitton Pochette Cles (key pouch), two items similar in size and function.  LV describes the Pochette Cles as a “…playful yet practical accessory that can carry coins, cards, folded bills and other small items, in addition to keys. Secured with an LV-engraved zip, it can be hooked onto the D-ring inside most Louis Vuitton bags, or used as a bag or belt charm.”  The Recto Verso is said to be a “…versatile accessory offers multiple practical features, including a flap pocket, a zipped compartment with a wide, L-shaped opening, and four card slots. It also has a concealed hook and chain which allow it to be attached to a bag or belt.”

Amber Ashleigh’s guide to choosing between Louis Vuitton's Retro Verso and Pochette Cles (Key Pouch).

The retail price of the Retro Verso is between US$590-720 while the Pochette Cles lists between US$320-410 (the price varying with the material used in the construction) and while the solution obviously is to buy at least one of each, not all modern young spinsters can afford that so they should watch Amber Ashleigh’s invaluable guide.  Ms Ashleigh says this is among her “most requested videos.”

Vermiform

Vermiform (pronounced vur-muh-fawrm)

Resembling or having the long, thin, cylindrical shape of a worm; long and slender.

1720-1730: From the Medieval Latin vermiformis, the construct being vermis (worm) + forma (form).  Vermis was from the primitive Indo-European wr̥mis and cognates included the Ancient Greek ῥόμος (rhómos) and the Old English wyrm (worm (which evolved into the Modern English worm)).  Form was from -fōrmis (having the form of), from fōrma (a form, contour, figure, shape, appearance, looks).  The root of the Latin vermis was the primitive Indo-European wer- (to turn, bend), an element most productive, contributing to: adverse; anniversary; avert; awry; controversy; converge; converse (as the adjectival sense of "exact opposite”); convert; diverge; divert; evert; extroversion; extrovert; gaiter; introrse; introvert; invert; inward; malversation; obverse; peevish; pervert; prose; raphe; reverberate; revert; rhabdomancy; rhapsody; rhombus; ribald; sinistrorse; stalwart; subvert; tergiversate; transverse; universe; verbena; verge (as the verb meaning "tend, incline"); vermeil; vermicelli; vermicular; vermiform; vermin; versatile; verse (in the sense of the noun "poetry") version; verst; versus; vertebra; vertex; vertigo; vervain; vortex; -ward; warp; weird; worm; worry; worth (in the adjectival sense of "significant, valuable, of value") worth (as the verb "to come to be"); wrangle; wrap; wrath; wreath; wrench; wrest; wrestle; wriggle; wring; wrinkle; wrist; writhe; wrong; wroth & wry.  Vermiform is an adjective.

Commonly used in medicine to describe the appendix, Modern French also gained the word from Latin as the adjective vermiforme (plural vermiformes), the spelling of the medical use apéndice vermiforme (plural apéndices vermiformes).  The only known derived form in English is the adjective subvermiform, used apparently exclusively in the disciplines of zoology, including entomology.  The meaning was defined in a dictionary from 1898 as “shaped somewhat like a worm” which is surprisingly imprecise for the language of science but that vagueness appears adequate for the purposes to which it’s put.  For whatever reason, vermiform was a word much favored by the US humorist HL Mencken (1880-1956).

The female Eumillipes persephone: 1,306 legs & 330 segments.  

Because the scientific literature has for some time been dominated by COVID-19 and all that flowed the brief, sudden prominence of two vermiform creatures, one ancient, the other more recent, was an amusing distraction.  The younger animal was a new species of millipede which boasted not only more legs than any other creature on the planet but was the first of its kind to live up to its name.    

Since circa 1600, the term millipede has been applied to any of the many elongated arthropods, of the class Diplopoda (a taxonomic subphylum within the phylum Arthropoda (the centipedes, millipedes and similar creepy-crawlies) with cylindrical bodies that have two pairs of legs for each one of their many body segments and, although milliped was long regarded as the correct spelling by scientists who work with myriapods, millipede is by far the most common form in general use (although there’s the odd specialist who insists on millepede).  Millipede was from the Latin millipeda (wood louse), the construct being mille (thousand) + pes (genitive pedis) (foot), from the primitive Indo-European root ped (foot) (probably a loan-translation of Greek khiliopous).  When named, it wasn’t intended as a mathematically precise definition, only to suggest the things had lots of legs though, certainly many fewer than a thousand.  The creature has always possessed a certain comical charm because, despite having usually twice the number of legs as centipedes, the millipede is entirely harmless whereas there are centipedes which can be quite nasty.  For centuries millipede was thought a bit of a misnomer, with no example ever observed with more than 750 legs and that deep-soil dweller was an outlier, most having fewer with a count in two figures quite common.  The new species also lives in the depths: Eumilipes persephone (Persephone, the daughter of Zeus who was taken by Hades to the underworld), a female was found to be sprouting 1,306 legs.  Pale and eyeless, it’s vermiform in the extreme, the body-length almost a hundred times its width and instead of vision, it used a large antennae to navigate through darkness to feed on fungi.

The sheer length of the thing does suggest a long lifespan by the standards of the species, most of which tend not to survive much beyond two years.  The persephone however, based on a count of the body segments which grow predictably in the manner of tree rings, seems likely to live perhaps as long as a decade.  One factor which accounts for the longevity is the absence of predators, the persephone’s natural environment banded iron formations and volcanic rock some 200 feet (60 m) beneath the surface of a remote part of Western Australia.  Entomologists didn’t actually venture that deep to explore, instead using the simple but effective method of lowering buckets of tempting vegetation down shafts drilled by geologists exploring for minerals, returning later to collect whatever creatures had been tempted to explore.

Artist’s impression of an Arthropleura: half a metre wide and perhaps nearly three metres in length, the latter dimension similar to a small car.  

Days after the announcement from the Western Australian desert, livescience.com also announced researchers in the UK found the fossilized exoskeleton of an Arthropleura, the largest arthropod yet known to have lived.  The length of a modern car, the giant millipede-like creatures appear to have done most of their their creeping and crawling during the Carboniferous Period, between 359 million and 299 million years ago.

Although the Arthropleura have long been known from the fossil record, there’d not before been any suggestion they ever grew quite so large and the find was quite serendipitous, discovered on a beach in a block of sandstone which had recently fallen and cracked apart.  The exoskeleton fragment is 30 inches (750 mm) long and 22 inches (550 mm) wide which means the giant millipede would have been around 102 inches (2600 mm) long and weighed around 110 lbs (50 kg)m making it the biggest land animals of the Carboniferous era.  Despite its bulk however, the physics of movement and the need to support its own weight mean the leg count is nowhere near as impressive as its young relation what is now on the other side of the world (what are now the Australian and European land masses were closer together during the Carboniferous) and it’s still not clear if Arthropleura had two legs per segment or every two segments but either way it adds up to much fewer than a hundred.

Ultimately, Arthropleura was a victim of changing conditions.  In its time, it would have been living in a benign equatorial environment but, over millions of years, the equator can shift because of the phenomenon of TPW (true polar wander) in which the outer layer of Earth shifts around the core, tilting the crust relative to the planet’s axis.  This last happened some eighty-four million years ago.  So, the conditions which for so long had been ideal changed and changed suddenly and Arthropleura was unable to adapt, going extinct after having flourished for nearly fifty-million years.  The reasons for their demise are those seen repeatedly in the fossil record: In an abruptly changed environment, there was suddenly more competition for fewer resources and the Arthropleura lost out to animals which were stronger, more efficient and better able to adapt.

The human appendix.

Thousands of years after first being described, the human appendix, a the small blind-ended vermiform structure at the junction of the large and the small bowel remains something of a mystery.  For centuries the medical orthodoxy was it vestigial, a evolutionary dead-end and a mere quirk of human development but the current thinking is it exists as a kind of “safe-house” for the good bacteria resident in the bowel, enabling them to repopulate as required.  However, being blind-ended, although intestinal contents easily can enter, in certain circumstances it can operate as a kind of one-way, non-return valve, making exit impossible which results in inflammation.  This is the medical condition appendicitis and in acute cases, the appendix must surgically be removed.  That's usually fine if undertaken in good time because it's a simple, commonly performed procedure but unfortunately, in a small number of cases, a residual "stump" of the structure may escape the knife and in this inflammation may re-occur, something surgeons resentfully label “stumpitis”.  Apparently the most useless part of the human anatomy, there is noting in the medical literature to suggest anyone has noticed any aspect of their life being changed by not having an appendix.

Obsolete & Obsolescent

Obsolete (pronounced ob-suh-leet)

(1) No longer in general use; fallen into disuse; that is no longer practiced or used, out of date, gone out of use, of a discarded type; outmoded.

(2) Of a linguistic form, no longer in use, especially if out of use for at least the past century.

(3) Effaced by wearing down or away (rare).

(4) In biology, imperfectly developed or rudimentary in comparison with the corresponding character in other individuals, as of a different sex or of a related species; of parts or organs, vestigial; rudimentary.

(5) To make obsolete by replacing with something newer or better; to antiquate (rare).

1570–1580: From the Latin obsolētus (grown old; worn out), past participle of obsolēscere (to fall into disuse, be forgotten about, become tarnished), the construct assumed to be ob- (opposite to) (from the Latin ob- (facing), a combining prefix found in verbs of Latin origin) + sol(ēre) (to be used to; to be accustomed to) + -ēscere (–esce) (the inchoative suffix, a form of -ēscō (I become)).  It was used to form verbs from nouns, following the pattern of verbs derived from Latin verbs ending in –ēscō).  Obsoletely is an adverb, obsoleteness is a noun and the verbs (used with object), are obsoleted & obsoleting; Although it does exist, except when it’s essential to covey a technical distinction, the noun obsoleteness is hardly ever used, obsolescence standing as the noun form for both obsolete and obsolescent.  The verb obsolesce (fall into disuse, grow obsolete) dates from 1801 and is as rare now as it was then.

Although not always exactly synonymous, in general use, archaic and obsolete are often used interchangeably.  However, dictionaries maintain a distinction: words (and meanings) not in widespread use since English began to assume its recognizably modern form in the mid-1700s, are labeled “obsolete”.  Words and meanings which, while from Modern English, have long fallen from use are labeled “archaic” and those now seen only very infrequently (and then in often in specialized, technical applications), are labeled “rare”.

Obsolescent (promounced ob-suh-les-uhnt)

(1) Becoming obsolete; passing out of use (as a word or meaning).

(2) Becoming outdated or outmoded, as applied to machinery, weapons systems, electronics, legislation etc.

(3) In biology, gradually disappearing or imperfectly developed, as vestigial organs.

1745–1755: From the Latin obsolēscentum, from obsolēscēns, present participle of obsolēscere (to fall into disuse); the third-person plural future active indicative of obsolēscō (degrade, soil, sully, stain, defile).  Obsolescently is an adverb and obsolescence a noun.  Because things that are obsolescent are becoming obsolete, the sometimes heard phrase “becoming obsolescent” is redundant.  The sense "state or process of gradually falling into disuse; becoming obsolete" entered general use in 1809 and although most associated with critiques by certain economists in the 1950s, the phrase “planned obsolescence was coined” was coined in 1932, the 1950s use a revival.

Things that are obsolete are those no longer in general use because (1) they have been replaced, (2) the activity for which they were designed is no longer undertaken.  Thing that are considered obsolescent are things still to some extent in use but are for whatever combination of reasons, are tending towards becoming obsolete.  in fading from general use and soon to become obsolete. For example, the Windows XP operating system (released in 2001) is not obsolete because some still use it, but it is obsolescent because, presumably it will in the years ahead fall from use.

Ex-Royal Air Force (RAF) Hawker Hunter in Air Force of Zimbabwe (AFZ) livery; between 1963-2002 twenty-six Hunters were at different times operated by the AFZ.  Declared obsolete as an interceptor by the RAF in 1963, some Hunters were re-deployed to tactical reconnaissance, ground-attack and close air support roles before being retired from front-line service in 1970.  Some were retained as trainers while many were sold to foreign air forces including India, Pakistan and Rhodesia (Zimbabwe since 1980).

Despite the apparent simplicity of the definition, in use, obsolescent is highly nuanced and much influenced by context.  It’s long been a favorite word in senior military circles; although notorious hoarders, generals and admirals are usually anxious to label equipment as obsolescent if there’s a whiff of hope the money might to forthcoming to replace it with something new.  One often unexplored aspect of the international arms trade is that of used equipment, often declared obsolescent by the military in one state and purchased by that of another, a transaction often useful to both parties.  The threat profile against which a military prepares varies between nations and equipment which genuinely has been rendered obsolescent for one country may be a valuable addition to the matériel of others and go on enjoy an operational life of decades.  Well into the twentieth-first century, WWII & Cold War-era aircraft, warships, tanks and other weapon-systems declared obsolescent and on-sold (and in some cases given as foreign aid or specific military support) by big-budget militaries remain a prominent part of the inventories of many smaller nations.  That’s one context, another hinges on the specific-tasking of materiel; an aircraft declared obsolescent as a bomber could go on long to fulfil a valuable role as in transport or tug.

In software, obsolescence is so vague a concept the conventional definition really isn’t helpful.  Many software users suffer severe cases of versionitis (a syndrome in which they suffer a sometimes visceral reaction to using anything but the latest version of something) so obsolescence to them seems an almost constant curse.  The condition tends gradually to diminish in severity and in many cases the symptoms actually invert: after sufficient ghastly experiences with new versions, versionitis begins instead to manifest as a morbid fear of every upgrading anything.  Around the planet, obsolescent and obsolete software has for decades proliferated and there’s little doubt this will continue, the Y2K bug which prompted much rectification work on the ancient code riddling the world of the main-frames and other places unlikely to be the last great panic (one is said to be next due in 2029).  The manufacturers too have layers to their declaration of the obsolete.  In 2001, Microsoft advised all legacy versions of MS-DOS (the brutish and now forty year old file-loader) were obsolete but, with a change of release number, still offer what's functionally the same MS-DOS for anyone needing a small operating system with minimal demands on memory size & CPU specification, mostly those who use embedded controllers, a real attraction being the ability easily to address just about any compatible hardware, a convenience more modern OSs have long restricted.  DOS does still have attractions for many, the long-ago derided 640 kb actually a generous memory space for many of the internal processes of machines and it's an operating system with no known bugs.  

XTree’s original default color scheme; things were different in the 1980s.

Also, obsolescent, obsolete or not, sometimes the old ways are the best.  In 1985, Underware Sytems (later the now defunct Executive Systems (EIS)) released a product called XTree, the first commercially available software which provided users a visual depiction of the file system, arranged using a root-branch tree metaphor.  Within that display, it was possible to do most file-handling such as copying, moving, re-naming, deleting and so on.  Version 1.0 was issued as a single, 35 kb executable file, supplied usually on a 5.25" floppy diskette and although it didn’t do anything which couldn’t (eventually) be achieved using just DOS, XTree made it easy and fast; reviewers, never the most easily impressed bunch, were effusive in their praise.  Millions agreed and bought the product which went through a number of upgrades until by 1993, XTreeGold 3.0 had grown to a feature-packed three megabytes but, and it was a crucial part of the charm, the user interface didn’t change and anyone migrating from v1 to v3 could carry on as before, using or ignoring the new functions as they choose.

However, with the release in 1990 of Microsoft’s Windows 3.0, the universe shifted and while it was still an unstable environment, it was obvious things would improve and EIS, now called the XTree Company, devoted huge resources to producing a Windows version of their eponymous product, making the crucial decision that when adopting the Windows-style graphical user interface (GUI), the XTree keyboard shortcuts would be abandoned.  This mean the user interface was something that looked not greatly different to the Windows in-built file manager and bore no resemblance to the even then quirky but marvelously lucid one which had served so well.  XTree for Windows was a critical and financial disaster and in 1993 the company was sold to rival Central Point Software, themselves soon to have their own problems, swallowed a year later by Symantec which, in a series of strategic acquisitions, soon assumed an almost hegemonic control of the market for Windows utilities.  Elements of XTree were interpolated into other Symantec products but as a separate line, it was allowed to die.  In 1998, Symantec officially deleted the product but the announcement was barely noted by the millions of users who continued to use the text-based XTree which ran happily under newer versions of Windows although, being a real-time program and thus living in a small memory space, as disks grew and file counts rose, walls were sometimes hit, some work-arounds possible but kludgy.  The attraction of the unique XTree was however undiminished and an independent developer built ZTree, using the classic interface but coded to run on both IBM’s OS/2 and the later flavors of Windows.  Without the constraints of the old real-time memory architecture, ZTree could handle long file and directory names, megalomaniacs now able to log an unlimited number of disks and files, all while using the same, lightning-fast interface.  The idea spread to UNIX where ytree, XTC, linuXtree and (most notably), UnixTree were made available.

ZTree, for those who can remember how things used to be done.

ZTree remains a brute-force favorite for many techs.  Most don’t often need to do those tasks at which it excels but, when those big-scale needs arise, as a file handler, ZTree still can do what nothing else can.  It’ll also do what’s now small-scale stuff; anyone still running XTree 1.0 under MS-DOS 2.11 on their 8088 could walk to some multi-core 64-bit monster with 64 GB RAM running Windows 11 and happily use ZTree.  ZTree is one of the industry’s longest-running user interfaces.

The Centennial Light, Livermore-Pleasanton Fire Department, Livermore, California.  Illuminated almost continuously since 1901, it’s said to be the world's longest-lasting light bulb.  The light bulb business became associated with the idea of planned obsolescence after the revelation of the existence of a cartel of manufacturers which had conspired to more than halve the service life of bulbs in order to stimulate sales.

As early as 1924, executives in US industry had been discussing the idea of integrating planned obsolescence into their systems of production and distribution although it was then referred to with other phrases.  The idea essentially was that in the industrial age, modern mercantile capitalism was so efficient in its ability to produce goods that it would tend to over-produce, beyond the ability to stimulate demand.  The result would be a glut, a collapse in prices and a recession or depression which affected the whole society, a contributing factor to what even then was known as the boom & bust economy.  One approach was that of the planned economy whereby government would regulate production and maintain employment and wages at the levels required to maintain some degree of equilibrium between supply and demand but such socialistic notions were anathematic to industrialists.  Their preference was to reduce the lifespan of goods to the point which matched the productive capacity and product-cycles of industry, thereby ensuring a constant churn.  Then, as now, there were those for and against, the salesmen delighted, the engineers appalled.

The actual phrase seems first to have been used in the pamphlet Ending the Depression Through Planned Obsolescence, published in 1932 by US real estate broker (and confessed Freemason) Bernard London (b circa 1873) but it wasn’t popularized until the 1950s.  Then, it began as a casual description of the techniques used in advertising to stimulate demand and thus without the negative connotations which would attach when it became part of the critique of materialism, consumerism and the consequential environmental destruction.  There had been earlier ideas about the need for a hyper-consumptive culture to service a system designed inherently to increase production and thus create endless economic growth: one post-war industrialist noted the way to “avoid gluts was to create a nation of gluttons” and exporting this model underlies the early US enthusiasm for globalism.  As some of the implications of that became apparent, globalization clearly not the Americanization promised, enthusiasm became more restrained.

Betamax and VHS: from dominant to obsolescent to obsolete; the DVD may follow.

Although the trend began in the United States in the late 1950s, it was in the 1970s that the churn rate in consumer electronics began to accelerate, something accounted for partly by the reducing costs as mass-production in the Far East ramped up but also the increasing rapidity with which technologies came and went.  The classic example of the era was the so-called videotape format war which began in the mid 1970s after the Betamax (usually clipped to Beta) and Video Home System (VHS) formats were introduced with a year of each other.  Both systems were systems by which analog recordings of video and audio content cold be distributed on magnetic tapes which loaded into players with a cassette (the players, regardless of format soon known universally as video cassette recorders (VCR).  The nerds soon pronounced Betamax the superior format because of superior quality of playback and commercial operators agreed with it quickly adopted as the default standard in television studios.  Consumers however came to prefer VHS because, on most of the screens on which most played their tapes, the difference between the two was marginal and the VHS format permitted longer recording times (an important thing in the era) and the hardware was soon available at sometimes half the cost of Betamax units.

It was essentially the same story which unfolded a generation later in the bus and operating systems wars; the early advantages of OS/2 over Windows and Micro Channel Architecture (MCA) over ISA/EISA both real and understood but few were prepared to pay the steep additional cost for advantages which seemed so slight and at the same time brought problems of their own.  Quite when Betamax became obsolescent varied between markets but except for a handful of specialists, by the late 1980s it was obsolete and the flow of new content had almost evaporated.  VHS prevailed but its dominance was short-lived, the Digital Versatile Disc (DVD) released in 1997 which within half a decade was the preferred format throughout the Western world although in some other markets, the thriving secondary market suggests even today the use of VCRs is not uncommon.  DVD sales though peaked in 2006 and have since dropped by some 80%, their market-share cannibalized not by the newer Blu-Ray format (which never achieved critical mass) but by the various methods (downloads & streaming) which meant many users were able wholly to abandon removable media.  Despite that, the industry seems still to think the DVD has a niche and it may for some time resist obsolescence because demand still exists for content on a physical object at a level it remains profitable to service.  Opinions differ about the long-term.  History suggests that as the “DVD generation” dies off, the format will fade away as those used to entirely weightless content available any time, in any place won’t want the hassle but, as the unexpected revival of vinyl records as a lucrative niche proved, obsolete technology can have its own charm which is why a small industry now exists to retro-fit manual gearboxes into modern Ferraris, replacing technically superior automatic transmissions.