📌 Introduction
In 2009, a programmer who had been rejected by the art world, frustrated that he “couldn’t sell his paintings,” teamed up with a partner to tinker with a little card-swiping square. More than a decade later, that little square had grown into a payments giant that even changed its company name to “Block.” Its boss is the person in all of Silicon Valley most willing to put “I believe in only one coin” into the company charter. That person is Jack Dorsey.
👤 Who Is He?
Jack Dorsey was born on November 19, 1976, in St. Louis, Missouri, USA. He is the co-founder of Twitter (now X) and the founder and CEO of Square, later renamed Block. In crypto circles, he has an even more prominent label: “Bitcoin maximalist.” He publicly backs only Bitcoin and is basically “not interested” in other altcoins, Ethereum, or NFTs. His net worth once reached around $4.5 billion, making him one of the tech billionaires who has most thoroughly put his beliefs into practice through his products.
🧬 His early journey
Dorsey was fascinated by computers from a young age. He attended the University of Missouri–Rolla, then transferred to New York University but never earned a degree. In 2006, he created Twitter with Biz Stone and Evan Williams, posting the first tweet in internet history. In 2009, inspired by a friend’s frustration at “wanting to accept payments but being unable to,” he founded Square, putting card payments on every small merchant’s phone with a tiny card reader. Square went public in 2015 at an offering price of $9 per share and a valuation of about $3 billion. For the next six years, he served as CEO of both Twitter and Square, two publicly traded companies—a setup investors repeatedly criticized as leaving him “spread too thin.”
🌟 His most notable achievements
First, he made buying Bitcoin as easy as “tapping once on your phone in the U.S.” In 2018, Square’s Cash App added Bitcoin trading, becoming one of the first major fintech apps in the country to let retail users buy BTC with a single tap. By the third quarter of 2023, Cash App’s quarterly Bitcoin revenue alone had topped $2.4 billion—it lowered the “barrier to entry” from opening an exchange account to a single finger tap.
Second, he put the company’s money where his beliefs were. In October 2020, Square spent $50 million to buy 4,709 BTC. In February 2021, it added another $170 million to buy 3,318, bringing its total to 8,027 Bitcoin, firmly embedded on its balance sheet. During the 2022 bear market, when BTC fell from $50,000 to $16,000, other companies sold; he didn’t sell a single coin. To this day, he still holds around 8,000 or more.
Third, in December 2021, he officially renamed Square to Block—a move widely interpreted as a signal of his “bet on blockchain and Bitcoin.” That same month, he stepped down as Twitter CEO and refocused all his energy on Block, gradually directing resources toward Bitcoin’s foundations: the open-source development fund Spiral, the self-custody wallet Bitkey, an in-house 3-nanometer mining chip (the Proto project), and Lightning Network tools. He even proposed “Web5” in 2021 and backed Nostr, a censorship-resistant social protocol.
🗓️ Timeline of key events
1976 Born in St. Louis｜2006 Co-founded Twitter｜2009 Founded Square｜2015 Square went public｜2018 Cash App added BTC trading｜2020.10 Bought 4,709 BTC ($50 million)｜2021.02 Added 3,318 BTC ($170 million)｜2021.11 Stepped down as Twitter CEO｜2021.12 Square renamed to Block｜2024 Launched its own mining chip and donated $21 million to OpenSats｜2025 Square merchants began accepting Bitcoin payments
💡 Why it matters
Dorsey’s significance isn’t “how many coins he bought,” but that he was the first leader of a major tech company to put the idea that “Bitcoin is the internet’s native currency” into real consumer products at scale. Cash App introduced countless ordinary people to BTC for the first time, Bitkey turned “holding your own private keys” into simple, user-friendly hardware, and Square merchants accepting Bitcoin moved payment use cases forward. He built his belief into infrastructure through products, not just words.
🏛️ Three layers of impact
Technologically, through Spiral he has continued funding open-source infrastructure such as Bitcoin Core, the Lightning Network, and BDK. Economically, he deeply tied a payments company’s cash flow and balance sheet to BTC, offering a model for “public companies holding crypto” that differs from MicroStrategy’s. Culturally, his uncompromising “believe in only one coin” stance became a banner for Bitcoin maximalists and has kept him trading barbs with the Ethereum camp for years.
💬 Public statements and style
His most famous line is: “Bitcoin changes everything. I don’t think anything else in my life is more important.” He firmly believes that “the internet will eventually have a native currency, and I hope it’s Bitcoin,” and he has also adapted a familiar quip: “Not your keys, not your coins.” He scrapped traditional performance reviews, set a 12,000-employee cap for Block, and publicly criticized Web3 as “just a VC-backed game of centralized control.” His style is minimalist and quiet: once he’s made up his mind, he goes all in.
⚖️ Controversies and facts
His uncompromising approach has also stirred controversy. Investors have questioned Block’s decision to devote so many resources to Bitcoin development, arguing that it distracts from its payments business. In 2023, short seller Hindenburg published a report accusing Cash App of facilitating fraud and inflating user numbers. Block denied the allegations in full, calling the report misleading. Some developers have also questioned whether “Web5” is simply Web3 with a new label. These criticisms are publicly documented, but as of now, regulators have not found the allegations to be substantiated.
📉 Missteps and lessons
Dorsey’s most obvious pitfall was the “dual CEO” period from 2015 to 2021: running Twitter and Square at the same time drew criticism from investors over divided attention and strategic drift. A string of projects—Square Capital, Caviar, Weebly, and others—were later sold off or shut down. He left Twitter in 2021, fourteen months before Elon Musk took over; in a sense, he jumped ship early and avoided the mess that followed. The lesson for ordinary people: don’t spread yourself across too many fronts. Go all in only on the main path you truly believe in.
🔭 What it means for today’s trading
Dorsey’s approach offers traders a simple rule of thumb: to see what someone truly believes, don’t listen to what they say—look at where they invest their money and their company. He held on to his 8,027 BTC through bull and bear markets without selling a single coin, not by predicting tops and bottoms, but by “believing in the fundamentals, not chasing the latest hype.” You don’t have to copy his concentrated position, but you can learn from his honesty in “aligning beliefs with positions.” Plenty of people call out trades; few practice what they preach.
📚 Lessons for traders
① Beliefs should show up in your positions, not just your talk. Dorsey didn’t just post an emoji and hype a coin—he renamed his company, bought real coins, and built a wallet. When evaluating a person or project, first look at where they put their money and effort.
② Extreme focus has costs, but it can also pay off. He went all in on Bitcoin and cut flashy side businesses. In the short term, he was called “obsessive”; over the long term, Block became the most Bitcoin-focused publicly traded company after Strategy. Think carefully before choosing diversification or concentration.
③ Don’t get swept up in “100x coin” narratives. Dorsey’s distrust of VC-driven centralization is a reminder that truly decentralized things are often quiet, while the noisy ones often hide a trap. Stick to assets you understand instead of chasing ten new concepts.
🗣️ One-line take
He built a social media empire while renaming the entire company Block—literally welding the words “believe in Bitcoin” into its corporate identity.
🎉 Wishing you prosperity
May you make enough this round to trade up to a car, and next round go straight for a house 🚗🏠
Investing involves risk. The data in this article was collected online and does not constitute investment advice. Please do your own research.