Ethereum: how a teenager built the world computer

Executive overview

Bitcoin proved decentralised currency was possible. Vitalik Buterin asked a harder question: what if you made the blockchain Turing complete — a globally distributed computer, not just a ledger? The Ethereum network is that computer, pairing arbitrary executable code with a native currency so that code can own and move money without any centralised party.

The result bootstrapped an entire new economy: ICOs, DeFi, and NFTs — each a killer use case that drove network growth, however chaotic the early years were.

A programmable blockchain turns a calculator into a computer and code into a bank.

Vitalik Buterin and the origins of Ethereum

• Born 1994 in Russia, moved to Toronto at five; placed in the gifted programme.
• At 17, found Bitcoin through his father and began writing for Bitcoin Weekly, earning five BTC per article.
• Co-founded Bitcoin Magazine in 2012; became a recognised technical writer across the crypto community.
• Took a year off from the University of Waterloo in 2013 to travel the world attending Bitcoin conferences.
• Met the Bitcoin 2.0 movement (Colored Coins, Mastercoin) in Tel Aviv and concluded their approach was piecemeal: adding specific features to Bitcoin rather than building a general-purpose platform.
• Crashed on a Ripple CTO's couch in San Francisco and wrote the Ethereum white paper in two weeks, naming the project after the classical concept of an invisible substance permeating the universe.

The founding and early structure

• Eight co-founders assembled: Vitalik, Mihai Alisie, Amir Chetrit, Anthony Di Iorio, Charles Hoskinson, Gavin Wood, Jeff Wilcke, and Joseph Lubin.
• A pivotal meeting in Zug, Switzerland (June 2014) ended with Vitalik — hugging a yoga ball on a terrace — firing Charles and Amir and committing to a non-profit Swiss foundation rather than a for-profit C-corp.
• Legal opinion from former SEC commissioner Joseph Grundfest established that ETH was a commodity, not a security, opening the door for token crowd sales.
• The initial crowd sale (July 2014) raised $18.3 million — 60 million ETH sold, the largest crypto crowd sale in history at the time.
• Gavin Wood made the first commit to Ethereum's GitHub on Christmas Eve 2013; he and Jeff Wilcke built parallel C++ and Go implementations independently.

How Ethereum works

• Ethereum is a Turing-complete blockchain: any logic can be encoded as a smart contract and executed trustlessly.
• Smart contracts — a concept coined by Nick Sabo — are code that executes if and only if defined conditions are met, with no human "compiler" (lawyer, bank) needed.
• Two account types exist: user wallets and contract accounts. Both are identical in structure; contracts have their own ETH balances.
• Gas fees are bounties paid in ETH to miners (nodes) to process transactions; the term comes from Vitalik's analogy of fuel powering a car.
• Every node holds a copy of all code and all state — making the network censorship-resistant but computationally slow (~15–45 transactions per second versus Visa's 50,000).
• The effective compute power of the entire Ethereum network circa 2021 was roughly equivalent to a Raspberry Pi on home broadband.

ICOs, the DAO hack, and the hard fork

• The Frontier release launched in July 2015; two weeks later Augur ran the first ICO on Ethereum.
• ICOs were the killer bootstrapping use case: 64 ICOs raised $100M+ in 2016; 966 raised $10B+ in 2017.
• The DAO (May 2016) raised $150 million — 14% of all ETH in existence — as a decentralised investment vehicle. A re-entrancy bug in Solidity allowed a slow-drain attack; ~$50M was stolen before the network responded.
• After a failed soft fork, the Ethereum Foundation executed a hard fork: rolling back the chain to before the attack, patching the bug, and restarting.
• A minority of miners refused the fork; they continued mining the original chain, which persists today as Ethereum Classic (~$4B market cap).
• The hack and fork established a precedent: Ethereum is pragmatically mutable, not philosophically immutable.

DeFi and NFTs: the post-ICO economy

• CryptoKitties (2017), built by Axiom Zen at an Ethereum hackathon, invented the NFT by introducing a non-fungible ERC token standard. At peak, it accounted for 15% of all Ethereum transactions. Axiom Zen became Dapper Labs, creator of NBA Top Shot.
• DeFi (decentralised finance) extends Bitcoin's premise — decentralised currency — to every financial product: lending, borrowing, trading, stablecoins.
• MakerDAO launched DAI, the first algorithmic stablecoin; Uniswap introduced liquidity pools for trustless token swaps.
• Compound (June 2020) pioneered yield farming by rewarding participants with governance tokens, igniting DeFi Summer.
• DeFi total value locked: $1B at start of 2020 → $12B by end of summer 2020 → $100B by May 2021.
• Gas fees spiked above $70 per transaction at DeFi peak.

Scalability, competition, and the road to Ethereum 2.0

• The scalability trilemma (Vitalik's framing): any blockchain can optimise two of three — decentralisation, security, scalability — but not all three simultaneously.
• EIP-1559 splits gas fees into a base fee (burned, making ETH deflationary) and a tip; this also removes the miner sell-pressure that continuously dilutes ETH supply.
• Ethereum 2.0 moves consensus from proof of work to proof of stake: validators stake 32 ETH to vote on valid transactions, earning yield rather than burning energy.
• Proof of stake makes ETH a cash-flowing asset: stakers earn protocol revenue, so ETH value accrues directly to holders.
• Sharding batches transactions off-chain into ~64 parallel shards, then settles them to the main chain — targeting 100,000 TPS.
• Competing chains (Cardano, Polkadot, EOS, Solana, Binance Smart Chain) emerged to exploit Ethereum's scalability gap; Solana is the most credible alternative, making different trilemma trade-offs.
• Composability ("money legos") — smart contracts on the same chain that can call each other atomically — is a key Ethereum advantage that sharding could partially erode.

Bull and bear cases (2021 analysis)

• Bull: ETH demand rises as DeFi, NFTs, and DAOs grow; EIP-1559 burns supply; proof-of-stake removes miner sell pressure; network effects and developer mindshare compound; Lindy effect strengthens security as market cap grows.
• Bear: ETH2 delays blow the lead; gas fee relief from side-chains reduces ETH fee revenue; Bitcoin price correlation drags the whole sector; regulatory crackdowns; composability breaks under sharding.
• Fred Wilson publicly called for the Ethereum Foundation to be replaced (2018) for failing to ship; Vitalik pushed back on the VC-style management model.
• Ethereum Classic's $4B market cap alongside Ethereum's $200B illustrates brand power as a distinct competitive moat.

Seven powers assessment

• Network effects (strong): more usage → more security → higher ETH price → harder to attack.
• Switching costs (strong): Solidity developers, ERC-20 token ecosystems, and accumulated on-chain state are hard to migrate.
• Counter-positioning (moderate): AWS and Azure cannot offer users equity-like exposure to their infrastructure; Ethereum's token model is structurally impossible for centralised cloud.
• Branding / legitimacy (moderate): ETH accrues legitimacy through longevity; Vitalik's writing on legitimacy directly frames this as a core asset.
• Scale economies (weak / negative pre-ETH2): more usage historically degraded performance rather than reduced costs.
• Process power and cornered resource: largely absent.