The first tweet was not inspiring. On March 21, 2006, Jack Dorsey typed “just setting up my twttr” and sent it into a system that existed only inside a failing podcasting startup’s employee network. Nobody outside Odeo could see it. The domain twitter.com was owned by someone else. The name was a placeholder borrowed from Flickr’s vowel-dropping convention and the five-character format of SMS short codes.
There was no grand vision attached to that first post. What Dorsey had proposed during Odeo’s all-day brainstorming session was modest: an SMS service that let individuals share status updates with a small group, like texting but more open. He and Biz Stone built the first prototype in about two weeks.
It took almost exactly a year from that first tweet for Twitter to do something that proved the idea was real. When the platform became the unofficial communication layer of the 2007 South by Southwest conference, daily tweet volume jumped from 20,000 to 60,000 during the event. The Twitter team had placed two 60-inch plasma screens in the hallways streaming Twitter messages in real time, and the tech community figured out immediately what it was for.
What followed was one of the most consequential, contested, and ultimately strange company histories in tech: four co-founders who each disputed the other’s credit for the invention, a CEO carousel that cycled through most of them, a business model that never worked as well as the cultural product justified, and finally a $44 billion acquisition by the world’s richest man that halved the company’s revenue and raised profound questions about what a platform that hosts public discourse is actually worth.
The Company Built From Another Company’s Failure
Odeo was supposed to be a podcast platform. Evan Williams, who had sold Blogger to Google and then left to start Odeo with Noah Glass and Biz Stone, had a reasonable thesis: podcasting was growing and needed infrastructure. Then Apple announced in 2005 that iTunes would natively support podcasting, and Odeo’s core business model was made obsolete by a company with infinitely more resources and distribution.
The response was to brainstorm aggressively for something else. During one such session, Jack Dorsey, who had come to Odeo as a contractor with prior experience in dispatch routing and status-based communication systems, proposed the SMS group status concept. He had been thinking about it for years, fascinated since his early interest in dispatch systems by the idea that a status message could be shared across a network.
Williams gave Dorsey approval to pursue it as a side project. Within weeks, the internal prototype was live for Odeo employees. People used it to say where they were, what they were doing, whether they were stuck in traffic. The mundane use cases were the point: this was not a medium for important announcements. It was a medium for the texture of daily life that people wanted to share with their networks.
When Twitter went public in July 2006 and the 2007 SXSW moment confirmed it was something, Evan Williams, Biz Stone, Dorsey, and other Odeo team members formed Obvious Corporation and bought Odeo from its investors, acquiring Twitter.com along with it. Noah Glass, who had been the original Odeo co-founder most enthusiastic about Twitter and had coined the name, was fired by Williams and excluded from the buyout. He stayed silent about his role for years. Williams later credited Glass with the name. Glass has disputed how credit was distributed ever since. The founding story of Twitter remains contested between all four people whose names attach to it.
The 140-Character Constraint That Became the Product
The character limit was not a design philosophy. It was a technical constraint from SMS, which capped messages at 160 characters. Twitter reserved 20 for the username and left 140 for content.
What happened to that constraint is the interesting part. Instead of removing it when Twitter moved beyond SMS to a web-based product, the team kept it. And the constraint turned out to shape the product’s culture in ways that made Twitter distinctly itself.
The 140-character limit forced compression. Political statements, news updates, jokes, observations all had to fit. This made Twitter a medium for brevity that was fundamentally different from blogging, which rewarded length, and from Facebook, which was organized around personal profiles and social graphs. Twitter was organized around ideas and public conversation in real time.
The features that defined Twitter’s culture in its early years were not invented by the company. They came from users. The @ symbol for addressing other users emerged from convention, not platform design. The hashtag was proposed in 2007 by Chris Messina, who struggled to convince Twitter’s own executives to adopt it before they eventually did. The retweet mechanism started as a manual behavior where users typed “RT” before a quoted tweet before the platform built native retweet functionality.
This pattern, users inventing the culture and the company formalizing it, told you something important about what Twitter was. It was a medium that the company happened to own but that the community shaped. The platform’s most powerful features were discovered rather than designed.
The CEO Carousel
Jack Dorsey was Twitter’s first CEO when the company formally incorporated in 2007. He was fired in 2008, reportedly over concerns about his management style and extracurricular activities that included yoga and fashion design. Evan Williams took over as CEO.
Williams ran the company through its high-profile period of celebrity adoption, including a live appearance on Oprah where Ashton Kutcher, who had recently beaten CNN in a race to 1 million followers, helped demonstrate the platform to a television audience that had never heard of it. The Oprah moment in April 2009 drove a massive wave of mainstream adoption. Twitter was no longer a tech community phenomenon.
Williams stepped down as CEO in 2010. Dick Costolo, the COO, replaced him. Dorsey returned as executive chairman focused on product. Costolo ran the company through the IPO in November 2013, when Twitter shares opened at $26 and closed at $44.90, giving the company a valuation of approximately $31 billion. Evan Williams and Jack Dorsey made $2.56 billion and $1.05 billion respectively from the listing.
Then the business reality set in. Twitter reported a net loss of $511 million in its first results as a public company. User growth slowed. The stock dropped. Costolo resigned in 2015.
Dorsey returned as interim CEO in July 2015 and was named permanent CEO in October. He was now running both Twitter and Square, the payments company he had co-founded in 2009, simultaneously. The dual CEO arrangement was a constant point of criticism from investors who felt Twitter needed his full attention.
The revolving leadership created real product consequences. Twitter was slow to address harassment and abuse that drove users off the platform. It was slow to build features that would make the experience better for new users who didn’t understand it. It was slow to develop a business model that reflected the platform’s actual cultural value.
The Business Model That Never Quite Worked
Twitter’s fundamental challenge as a public company was that its cultural significance consistently exceeded its commercial performance.
The platform hosted the Arab Spring. It became the primary medium through which news broke in real time. It was the place journalists, politicians, and public figures communicated directly with their audiences. The Library of Congress archived every tweet. NASA used it to share updates from the International Space Station. When Michael Jackson died in 2009, Twitter servers crashed from the traffic volume.
None of this translated efficiently into advertising revenue.
Facebook had built its advertising business on the social graph: it knew who you were, who your friends were, and could target ads based on demographic and behavioral data that was extraordinarily granular. Twitter’s data about its users was thinner. The interest-based targeting it could offer was less precise. And the conversational format of Twitter, the rapid stream of posts from many accounts, was a less natural environment for the display advertising that Facebook had mastered.
Twitter’s advertising product worked better for brand awareness than direct response, which meant lower CPMs and smaller advertiser budgets. The company tried various product experiments to drive engagement and revenue: Vine (short video, killed in 2016), Periscope (live video, eventually folded into Twitter proper), Moments (curated topic feeds, later discontinued), an algorithmic feed that replaced the chronological timeline in 2016.
The algorithmic feed was the most significant product decision of the Dorsey second era. Twitter argued that showing users the best content rather than the most recent would drive engagement. It probably did. It also changed the character of the platform in ways that alienated the core user base who had built habits around the chronological timeline. Dorsey later wrote that the algorithmic feed was among the biggest mistakes he’d made at Twitter.
The company became profitable in Q4 2017 for the first time. It reported positive earnings in only two of its eight years as a public company. Revenue peaked at approximately $5.1 billion in 2021. The financial performance was consistently disappointing relative to the platform’s cultural footprint.
$44 Billion and the Deal That Changed Everything
In April 2022, Elon Musk disclosed that he had built a stake in Twitter and then made an unsolicited offer to acquire the company for $54.20 per share, totaling approximately $44 billion. Twitter’s board initially resisted, then accepted.
Then Musk tried to exit the deal, citing concerns about the proportion of bot accounts on the platform. Twitter sued him in Delaware to force the acquisition to close. In October 2022, facing a legal process likely to go against him, Musk announced he would proceed at the original price. The deal closed October 27, 2022.
The takeover moved immediately and dramatically. Musk fired CEO Parag Agrawal, CFO Ned Segal, chief legal officer Vijaya Gadde, and general counsel Sean Edgett within hours of the deal closing. He reduced the workforce from approximately 7,500 to fewer than 1,500 through a series of layoffs, cutting roughly 80% of the company. He dissolved the board and installed himself as sole director.
The moderation approach changed. Accounts that had been permanently suspended, including Donald Trump and Kanye West, were reinstated. Content moderation teams were gutted. Musk reinstated the verification system as a paid subscription (X Premium at $8 per month), removing the legacy verified checkmarks from accounts that had earned them through identity verification and giving the same mark to anyone who paid. The result was a wave of impersonation and misinformation from accounts bearing the blue checkmark.
Advertisers left. Major brands that had relied on Twitter’s ad platform cited brand safety concerns: the reduction in content moderation meant their ads might appear adjacent to content they did not want to be associated with. At a DealBook conference, Musk told departing advertisers, “go f— yourself,” which did not accelerate their return.
Revenue fell from $4.4 billion in 2022 to $3.4 billion in 2023 and approximately $2.5 billion in 2024. Twitter’s own internal documents, filed in legal proceedings related to employee equity, estimated the company’s value at approximately $19 billion one year after Musk’s $44 billion purchase. Fidelity, which had invested $300 million in the deal, marked its stake down 79% from the purchase price by October 2024.
The debt Musk had taken on to fund the acquisition, approximately $13 billion attached to the company itself rather than to him personally, required $1.2 billion in annual interest service. The Wall Street Journal called it the worst merger-finance deal for banks since the 2008 financial crisis.
What Survived and What Didn’t
The platform that exists in 2026 as X is recognizably descended from Twitter but altered in ways that matter.
The user count is disputed. Musk has claimed 550 million monthly active users. Third-party measurement services showed meaningful declines in the period following the acquisition, with mobile daily active users down 16% year-over-year by September 2023. The platform’s demographics skewed heavily male (68.5% of users) and concentrated in specific age brackets. Ten percent of users produce over 80% of all posts, a concentration that was always true of Twitter and has remained true of X.
The financial picture began stabilizing. EBITDA nearly doubled from 2021 to 2024, from $682 million to $1.25 billion, primarily through cost reduction from the massive workforce cuts rather than revenue growth. US digital ad revenue was projected to grow 17.5% in 2025 as some advertisers returned. In 2025, Musk’s xAI acquired X in an all-stock transaction, merging the social platform with the company developing the Grok AI chatbot, deepening the integration of AI into the product.
The political dimension that was always part of Twitter’s identity became more explicitly central under Musk. Musk’s public support for Donald Trump in the 2024 election and his appointment to lead the Department of Government Efficiency gave X a political significance that attracted some users and drove away others. Platform policy on content moderation moved in directions that aligned with Musk’s stated views on speech. The conversation about what a platform that hosts public discourse owes to its users, to democratic institutions, and to advertiser partners, which had been ongoing throughout Twitter’s existence, became impossible to separate from questions about Musk’s politics.
What the Twitter Story Is Really About
The Twitter success story is also a story about the gap between cultural value and business value, and about what happens when you can’t close that gap.
Twitter invented real-time public conversation as a medium. The hashtag, the retweet, the @reply became global communication conventions that outlived the platform’s ownership structure and got copied into every subsequent social network. The 140-character constraint turned out to be a generative creative restriction rather than a technical limitation. Journalists, activists, and political figures built entire professional practices around the platform’s specific format.
The company that owned this medium was profitable in two of its eight years as a public company. It lost $511 million in its first quarter of public reporting. Its advertising product was structurally weaker than Facebook’s. Its user growth plateaued in ways that the algorithmic feed didn’t fix and may have worsened.
Musk paid $44 billion for a company he clearly believed was worth more than the market was pricing it at. The advertiser exodus and revenue collapse in the years following the acquisition have tested that thesis severely. The EBITDA improvement from workforce reduction represents cost discipline, not business growth. The debt attached to the deal costs $1.2 billion a year to service.
What Musk acquired was not primarily a business. It was the infrastructure of public discourse for a specific, influential demographic: journalists, politicians, researchers, tech workers, and the people who want to watch them argue in real time. That infrastructure has an influence that exceeds its financial performance by an order of magnitude.
Jack Dorsey built Twitter in two weeks as a side project at a failing podcasting company, using a name that was a placeholder for a domain he didn’t own yet. The first tweet was “just setting up my twttr.”
Twenty years later, the platform that grew from that message sits at the center of some of the most consequential debates about speech, power, and the architecture of public conversation in a democratic society.
The business never fully figured out how to monetize that position. The product outlasted five CEOs and a $44 billion leveraged buyout that cut revenue in half. It is still the place where the world’s news breaks first, where political statements land before they reach anywhere else, and where the argument about what it means to have a public conversation at all continues to play out in real time.
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