People Who Shaped Investing
Learn about the investors, builders, and thinkers behind some of the biggest ideas in markets, money, Bitcoin, and long-term wealth building.
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Updated 2026-06-11The investor profiles readers open most, ranked by real page views from our analytics.
Giovanni Santostasi
FeaturedPhysicist and Bitcoin Power Law researcher
Santostasi developed and popularized the Bitcoin Power Law, a long-term model that describes Bitcoin's price as a power-law function of time since launch. We use the canonical version of that model on our Bitcoin Power Law page, so his work connects directly to a tool you can explore here.
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Bitcoin & Crypto
Builders and researchers behind Bitcoin and the wider crypto space.
Published the 2008 Bitcoin white paper and released the first software, introducing a way to transfer value online without a central authority. The real identity behind the name is unknown.
Developed and popularized the Bitcoin Power Law, a long-term model that describes Bitcoin’s price as a power-law function of time.
Led a corporate strategy of holding large amounts of Bitcoin on a company balance sheet, and became a prominent public advocate for Bitcoin as a treasury asset.
Proposed and helped build Ethereum, a blockchain designed to run programmable smart contracts, broadening crypto beyond simple payments.
Value Investing
Investors known for buying businesses below their estimate of fair worth.
Built a long public track record applying value-investing principles, focusing on quality businesses bought at sensible prices and held for the long term.
Warren Buffett’s longtime business partner, known for emphasizing rational decision-making, mental models, patience, and temperament. He died in 2023.
Wrote foundational books on security analysis and taught the idea of a margin of safety. He was an early teacher of Warren Buffett.
Ran a widely followed mutual fund and wrote popular books encouraging investors to understand the businesses they own.
Indexing & Personal Finance
Advocates for low-cost, long-term investing for everyday savers.
Founded Vanguard and popularized low-cost index funds, arguing that keeping fees low is one of the most reliable ways to improve long-term returns.
Macro & Market Cycles
Thinkers focused on the economy, risk, and where we sit in a cycle.
Built one of the largest hedge funds and wrote widely about economic cycles, diversification, and balancing risk across assets.
Known for widely read investor memos on risk, market cycles, and the role of psychology in markets.
Known for a flexible, top-down macro approach and a long record of changing positions as conditions change.
Growth & Innovation
Investors focused on long-horizon, high-growth technology themes.
Founded ARK Invest and is known for high-conviction, thematic investing in disruptive technology. The concentrated approach has produced large swings in both directions.
Related learning
The ideas these people are known for, explained in plain English, plus the tools to put them into practice.
Educational content only. These profiles are brief, neutral summaries compiled for learning. They are not endorsements, not investment advice, and not a claim that any person is always right. Mentioning someone here does not imply they are affiliated with Money Masters Media.