Elon Musk’s recent rebranding of Twitter as X marks the culmination of a long-running fascination with X that stretches back to the early years of his career. This obsession, however, is far from unique to Musk alone. The letter X has, for centuries, been a symbol of many things, from the mathematical unknown to pop culture and branding. Its evolution from ancient civilisations to the digital age has been shaped by its versatility and its ability to capture human imagination.
Elon Musk’s enduring fascination with X
Musk’s relationship with the letter X began with his second company, X.com, which he co-founded in 1999. X.com would later become PayPal, after Musk was ousted from the company, but it was clear from the outset that X held particular significance for him. A few years later, Musk founded SpaceX, where X was relegated to a suffix and in 2015, Tesla launched the Model X, a SUV named with the same symbolic letter. Even in his personal life, Musk's fondness for X extended to his youngest child, who was given the name X Æ A-12 (later simplified to X). Musk’s latest endeavour, renaming Twitter to X, is perhaps the most visible manifestation of his long-standing obsession.
Ancient origins and historical development
The fascination with X, however, is not confined to Musk alone. In fact, X’s appeal is rooted in a rich history that spans centuries. Its origins can be traced back to the Phoenician alphabet, which was developed around 1050 BCE. The Phoenicians had a letter called samekh, which was symbolised by a vertical line intersected by three horizontal lines, resembling a fish skeleton. This letter was later adapted by the Greeks and, eventually, by the Romans, who gave it the form we recognise today, two diagonal lines intersecting at the centre.
The ambiguity and symbolic nature of X
Despite this long history, the letter X’s symbolic significance is somewhat ambiguous. It does not appear in the earliest known alphabet, the proto-Sinaitic script, which was developed around 1900 to 1700 BCE. The lack of X in this foundational writing system suggests that X has no inherent meaning beyond the symbolism attributed to it by later civilisations. As Johanna Drucker, a professor of bibliographical studies at UCLA, explains, X is “a special mystery letter.” Unlike other letters that were associated with specific sounds or concepts in ancient writing systems, X has always been an enigmatic mark, defined more by its usage than any intrinsic symbolism.
X as a mark of the unknown
The ambiguity of X is one of the reasons why it has proven to be so versatile. In early written language, X was used to signify a mark or an ‘unknown’ object, often in cave drawings or early inscriptions. Before standardised writing systems were developed, X appeared as a simple, recognisable mark, representing something deliberately human-made in contrast to natural phenomena. Over time, this function of X as a symbol of the unknown was formalised, particularly in mathematics.
X in algebra and scientific thought
X’s most significant modern association came with its use in algebra. It wasn’t until the 17th century that X became standardised as a symbol for an unknown quantity in algebraic equations. This usage is credited to the French mathematician and philosopher René Descartes, who adopted X and other letters from the end of the alphabet to represent unknown variables in his work. By this time, algebra had become central to scientific thinking and X’s role as the ‘unknown’ became firmly entrenched in academic and popular culture. This idea of X as a placeholder for something undefined or mysterious would become one of X’s defining characteristics.
X in popular culture and youth identity
In popular culture, the letter X has become synonymous with a variety of concepts, each reflecting different aspects of modern life. It has come to represent extremity or boundary-pushing, as seen in the X Games, a series of extreme sports events that began in the 1990s. The gaming industry further embraced X, with titles like the snowboarding game SSX and the Xbox, the gaming console introduced by Microsoft in 2001. For many, X evokes a sense of adventure, rebellion and the breaking of norms, qualities that are often associated with youth culture and the desire for something new or innovative.
The use of X in popular culture was perhaps most influentially solidified by Douglas Coupland’s 1991 novel Generation X: Tales for an Accelerated Culture. The book, which explored the lives of disaffected youth in the post-Cold War era, popularised the term “Generation X” as a label for a group of people caught between the old world of traditional values and the new, rapidly changing digital landscape. This novel captured the zeitgeist of the 1990s, a time of cultural and technological upheaval and solidified X’s place as a symbol of modernity and alienation.
X in branding and corporate identity
Brands and corporations quickly recognised the power of the letter X to communicate certain attributes. As the internet era dawned, X became a counterpoint to the dominance of X ‘i’ that characterised the branding of Apple products, such as the iMac and iPhone. According to branding expert Joe Parrish, the ‘i’ signified the internet and personal connection, whereas the ‘X’ connoted experimentation, speed and the unknown. X’s appeal in branding lies in its ability to be suggestive without being explicitly defined. It can represent anything from extreme sports to cutting-edge technology, making it an ideal symbol for companies looking to convey a sense of innovation and dynamic change.
Visual appeal and memorability
The visual appeal of X also played a role in its widespread use. Colin Chow, a global managing partner at the consultancy TwentyFirstCenturyBrand, highlights that X is “perfectly balanced” and that its symmetry makes it “highly memorable.” This graphical appeal further enhances X’s effectiveness as a brand marker, helping it stand out in a crowded marketplace.
Critiques of overuse and predictability
Yet, despite its widespread use and undeniable appeal, some critics argue that Musk’s decision to rebrand Twitter as X is not particularly innovative. Jake Hancock, a senior brand strategist at Lippincott, suggests that the use of X in this context is merely the latest example of a trend that has been in place for decades. He argues that, rather than being a bold or provocative choice, Musk’s rebranding simply follows a long-standing tradition of using X to suggest innovation and excitement. The very ubiquity of X in branding, he suggests, makes it a somewhat predictable and unoriginal choice for a company looking to reinvent itself.
Indeed, as Hancock points out, the letter X has been so widely adopted that it has lost some of its original mystique. For example, in the 1960s, creative consultants advised the company that would later become Xerox to drop the word “Haloid” from its name and adopt the simpler, more impactful ‘X’. The same logic applies to many other brand names, from FedEx to Expedia, where X imparts a sense of speed, impact and modernity.
Conclusion
Ultimately, Musk’s decision to rebrand Twitter as X may be less about creating something entirely new and more about tapping into a cultural and historical tradition of using X to signify a particular set of values. Whether or not this rebranding proves successful in the long term, it’s clear that X remains one of the most captivating and multifaceted symbols in human history. From its origins in ancient writing systems to its modern-day associations with the unknown, the extreme and the innovative, X continues to captivate our collective imagination, making it a fitting emblem for a new era of digital communication.