Background & Biography
Choi studied at the Wharton School, a background confirmed by his own biography and Forbes. In his March 2018 announcement of Blockcrunch, he described initially dismissing Bitcoin before revisiting it through a financial-technology class. Subsequent conversations with practitioners and study of the underlying technology convinced him that the field needed more accessible, substantive analysis. That account locates the podcast’s origins in an effort to learn from people building and financing the industry.
Blockcrunch’s original feed provides a concrete starting point. Its introduction appeared on 20 February 2018, crediting Choi and David Ongchoco as hosts, followed by an interview with Boost VC’s Adam Draper. Choi later became closely associated with the show’s research-led interviews. During his institutional investing career, he served as General Partner and Head of Research for liquid strategies at Spartan Capital. These are former appointments: his present professional identity is connected to Tangent and his own investing and writing.
Choi and Darryl Wang announced Tangent in July 2022. Bloomberg reporting republished by The Business Times described a vehicle using proprietary capital and providing selected early-stage projects with practical resources, without taking outside capital or charging management fees. His current public professional profile lists Hong Kong, while contemporary launch reporting identified Tangent with Singapore. The profile’s geographic fields reflect those documented professional connections, rather than nationality or an assumption that a company’s headquarters determines its founder’s residence.
Notable Contributions
Blockcrunch is Choi’s most readily inspectable contribution to crypto’s public information base. Its early design favored direct, relatively concise discussions with investors and entrepreneurs. In the launch essay, Choi contrasted that approach with information channels susceptible to promotional incentives or confirmation bias. The resulting archive provides a record of which problems founders considered important and how they explained their work at particular stages of the industry’s development.
Some episodes addressed technical subjects in a form intended for a broader audience. A September 2018 installment with 500 Startups venture partner Bonnie Cheung examined blockchain scaling, including the division of work across different layers. Later interviews covered subjects such as decentralized social networks and Web3 storage. Choi’s contribution was to convene, question and communicate; the protocols and technical proposals discussed remained the work of their respective creators. An interview’s publication establishes the discussion, not independent validation of every guest’s claim.
His investment work added an institutional perspective to those conversations. Forbes’ May 2022 profile documented his Spartan role and recognized him in its Asia 30 Under 30 coverage of finance and venture capital. That evidence situates the media work alongside a professional research career, while avoiding the assumption that a public following itself establishes investment skill. This profile does not reproduce performance rankings, personal portfolio lists or asset-growth claims as measures of his influence.
Tangent’s launch presented a distinct operating model. The Business Times reported that Choi and Wang intended to work with a small number of projects each quarter, supported by access to technical, legal, auditing and media resources. The founders also assembled a mentor network that included experienced crypto operators. These were the announced arrangements of the 2022 launch, not permanent promises about the number of companies served today. The significant contribution was the attempt to combine investors’ time and professional networks with a proprietary-capital structure.
The firm’s own legal page provides an important qualification. Tangent is a trade name for a private holdings vehicle and an affiliated advisory entity; the page does not represent it as a licensed investment manager. It also separates the public statements of individual personnel from the views of affiliated entities. These distinctions matter when reading descriptions that casually call every crypto investment organization a fund. Choi’s public commentary should be understood in its stated context, rather than treated as an offer of a managed investment product.
His public research interests have broadened. In a December 2024 Blockhead interview, he discussed market cycles, real-world adoption and several styles of investing. His current personal homepage emphasizes frontier technology and describes Tangent in AI-focused terms, while the About page of his On a Tangent blog still identifies crypto as his primary focus. Together, those sources support an expanded remit; they do not establish a precise date for a complete strategic pivot. The blog presents itself as a place to develop ideas about markets, technology and professional practice.
Blockcrunch’s endpoint is also documented. The feed’s 30 January 2025 installment is titled The Last Episode and says the show is stopping. That is stronger evidence of its status than the generic weekly-update labels still visible in podcast directories. The archive remains relevant to Choi’s influence, but a current profile should describe him as its founder and former host rather than promising new weekly interviews.
Why Katharos.ai Follows Jason Choi
Choi’s career makes the relationship between public research and investing unusually visible. A podcast episode, a founder interview and a capital-allocation decision may examine the same industry from different positions. Katharos.ai follows how he frames those questions and distinguishes evidence of product use from a persuasive market narrative. The value of the archive lies partly in allowing earlier arguments to be compared with later developments.
Tangent also provides a useful case for examining investor support beyond financing. The practical questions concern what founders receive, how responsibilities are divided and whether a stated operating model survives changing market conditions. Choi’s broader technology interests add a second line of inquiry: which lessons from crypto carry into other emerging fields, and which assumptions need to be reconsidered. These are editorial questions, not forecasts about the success of particular investments.
Areas to Follow
- Public research and writing: track identifiable arguments, supporting evidence and revisions, with the publication date kept visible. - Tangent’s evolving remit: reconcile newer AI and frontier-technology descriptions with its continuing crypto-facing materials before assigning a narrow sector label. - Founder support: look for concrete, attributed examples of advisory or operational work rather than equating a portfolio association with product authorship. - The Blockcrunch archive: distinguish historical interviews from current activity and preserve the January 2025 closing announcement in future biographies.
Reporting Scope
Coverage is limited to public professional activity and attributable commentary. Spartan responsibilities are historical, Tangent’s structure follows its own legal description, and guest statements remain attributable to the guest. No conclusions about personal holdings, wealth or returns are drawn. Professional market labels do not imply nationality, and public remarks do not constitute investment recommendations from Katharos.ai.
Areas of Influence
Investment & Founders reflects Choi’s institutional research background and role in establishing Tangent. Community, Media & Education reflects Blockcrunch and his subsequent writing. His influence on blockchain infrastructure is primarily analytical and financial, rather than a claim to protocol authorship. The most useful assessment follows what he has actually published, built or helped organize, while keeping commercial activity and independent verification distinct.
Katharos.ai publishes this profile for information, based on the sources listed. Inclusion is not an endorsement of the individual, their organizations, or any investment product.
Source notice: Information and images are attributed to the external sources listed. Katharos.ai does not endorse the subjects or claims described and does not independently certify the authenticity of every source statement or image.