Bryan Johnson: the magnate who chose longevity instead of cryptocurrencies with a net worth of $300 million

In 2013, Bryan Johnson faced a crucial crossroads that could have transformed him into one of the giants of the cryptographic revolution. Instead, the 47-year-old tech entrepreneur chose a completely different path, dedicating his wealth and life to the pursuit of biological immortality. Today, he is mainly known for his annual investments of millions of dollars in anti-aging research, but he himself admits: “If I hadn’t sold Braintree, I would have fully dedicated myself to cryptocurrencies.”

How Bryan Johnson’s wealth was built through payment innovation

Bryan Johnson’s wealth story begins in 2007 when he founded Braintree, a mobile and online payment company that grew at an extraordinary rate. Its annual growth reached 4,000%, attracting immediate attention from investors. In 2012, he acquired Venmo, the iconic money transfer app, and the following year, PayPal recognized its value by acquiring Braintree for $800 million.

From the sale, Johnson pocketed about $300 million, bringing his total net worth to approximately $400 million according to public valuations. An extraordinary gain for a company that was only six years old. This wealth forms the financial foundation that now allows him to heavily invest in longevity research: tens of millions of dollars annually, supported by a team of about 30 specialists, from nutritionists to MRI technicians.

Bryan Johnson’s vision of cryptocurrency: the path not taken

During the time he was building Braintree, Johnson did not go unnoticed in the emerging crypto community. He and his team were actively working on a strategic partnership with Coinbase to process Bitcoin payments and enable merchants to accept cryptocurrencies. “We were among the first in the industry to adopt cryptocurrencies,” says Johnson, recalling this chapter of his entrepreneurial history with a touch of nostalgia.

However, the sale to PayPal in 2013 interrupted that promising trajectory. Johnson was genuinely optimistic about Bitcoin’s potential and blockchain technology, but the timing of the transaction meant his focus shifted elsewhere. Reflecting on this pivotal moment, Johnson admits: “Yes, there is a parallel universe where my entire life was dedicated to cryptocurrencies.” That untraveled path remains one of the great “what-ifs” in the history of decentralized finance, even if his accumulated wealth has still allowed him to stay influential in crypto and tech ecosystems.

The Network School: bridging crypto wealth and libertarianism

In recent years, despite not fully dedicating himself to cryptocurrencies, Johnson has found a way to re-engage with the environments that fascinate him. He is co-founding The Network School with Balaji Srinivasan, former CTO of Coinbase, one of the most influential thinkers on the vision of a libertarian-based “Network State” and Bitcoin-based financial systems.

The Network School is a three-month educational program bringing together 150 “libertarian capitalists” focused on technology, hosted in Forest City, a ghost town built by the Chinese on an artificial island in Malaysia. It is the most concrete project so far of Srinivasan’s decade-long dream to create a Network State—an embodiment of open-source internet governance based on libertarian principles and an economy built on Bitcoin.

For Johnson, the project represents an opportunity to bring together “free thinkers who want to create something new.” As he explains: “If you look at the history of civilization, innovation rarely comes from established institutions. It comes from the margins.” The Network School unites two of the main obsessions of the ultra-wealthy crypto community: creating micronations and independent states (think Liberland, Crypto Utopia, Satoshi Island), and pushing biological limits through longevity research.

Bryan Johnson’s obsession with biological immortality

In recent years, Johnson’s wealth and attention have been almost exclusively focused on longevity research. He founded Blueprint, his personal biological optimization protocol, and Don’t Die, a broader project to help humanity significantly extend its lifespan through diet regimes, optimized lifestyles, and innovative treatments based on data.

His routine is extraordinary even by tech billionaire standards. He spends about two million dollars a year to keep his body as young as possible. He follows a precise diet, practices 35 different exercises, and places such a high emphasis on sleep that he eats his last meal at 11 a.m. to prepare his heart rate for nighttime rest. Such meticulous regimen has yielded results Johnson claims are verifiable: he states his biological aging rate is now 0.64, meaning he ages more slowly than time passes—celebrating his biological birthday every 19 months instead of every 12.

Although known for experimenting with more extreme therapies, such as transfusions of plasma from his teenage son, Johnson is adamant that the vast majority of benefits come from the “three simple medicines”: proper diet, exercise, and quality sleep. “I think many people don’t want this to be true,” Johnson says, “because then they face an uncomfortable reality: that they are not doing these things.”

However, he is enthusiastic about some specific drugs. He has been taking 1,500 mg of metformin daily for four years, a diabetes medication that recent studies on monkeys suggest could reverse six years of brain aging. He speaks even more favorably of Ozempic (semaglutide), stating: “It’s one of the greatest advances in medicine. The fact that it can fundamentally change a person and their relationship with food is opening a new era of self-optimization.” He also sells an online Blueprint Stack of supplements based on his principles.

Biological immortality: solvable or science fiction?

Johnson is convinced that biological immortality is entirely solvable from a scientific standpoint. His argument is based on concrete biological precedents: the immortal jellyfish (Turritopsis dohrnii) can revert to its polyp stage and restart its cycle indefinitely. Scientists have already successfully transformed adult skin cells into stem cells and reversed age-related vision loss by reprogramming retinal cells.

“Biology has already solved the problem,” Johnson asserts. “It has shown us that immortal things can exist. Now it just needs to be applied to our species. It’s entirely solvable.” This optimism is not isolated in the crypto community: Vitalik Buterin has publicly written that “aging is a humanitarian disaster that kills as many people as World War II every two years,” while “Bitcoin Jesus” Roger Ver has even considered cryopreservation as an extreme longevity option.

Johnson isn’t entirely sure why there is such a strong correlation between tech and crypto billionaires and the obsession with longevity, but he offers a fascinating theory: “Those who have already solved difficult engineering problems might simply see aging as another problem to solve.” He and Srinivasan have even crafted a philosophical metaphor on stage: “Bitcoin is about preventing the state from slowly draining your wealth through inflation. Don’t Die is about preventing the state from slowly draining your health by accepting the inevitability of death. Both reject this slow boiling death.”

AI and superintelligence: Bryan Johnson’s future vision

Despite massive investments in longevity, Johnson insists that his true goal is much broader. “Many people think what I do is just about health and well-being,” he explains. “In reality, I am trying to answer a bigger question: what do we do as a species when we give birth to superintelligence?”

His perspective on superintelligence is informed by historical thought exercises. He cites the invention of the printing press in the 15th century, which initially caused terror among scribes worried about losing their jobs, but proved to be one of the most transformative developments in human history, catalyzing an explosion of scientific knowledge. Similarly, he believes current fears about AI could be shortsighted if viewed from five centuries in the future.

“It’s a mental exercise that invites humility about what could be and what we know and don’t know,” he says. Johnson firmly believes that AI systems will help accelerate longevity research, citing systems like Google’s AlphaFold as examples of this acceleration, though he warns that AI is not a universal panacea.

Johnson’s vision of combining biological longevity, crypto decentralization, and superintelligence has drawn comparisons to religious movements, with some observers likening the Don’t Die Movement to a form of contemporary religion. Johnson himself, a former Mormon who lost his traditional religious faith, acknowledged the comparison by replying: “You’re right about the goal and the vision. My experience is that it takes time to fully digest the Don’t Die. It challenges everything we understand about existence, even though it feels intuitively correct.”

What is clear is that Bryan Johnson’s wealth—built on the digital payments revolution but reinvented through a vision of a future humanity—continues to reshape how a small group of tech and crypto billionaires imagine the future of the human species.