Ethereum
Ethereum is the largest altcoin platform, designed as a general-purpose blockchain for smart contracts and decentralized applications. It differs fundamentally from Bitcoin in its security model, monetary policy, governance structure, and design philosophy — prioritizing programmability over sound money properties.
How It Works
Ethereum launched in 2015 with a fundamentally different vision than Bitcoin. Where Bitcoin aims to be sound, decentralized money, Ethereum aims to be a "world computer" — a platform for running arbitrary code through smart contracts. This design choice has profound implications for security, decentralization, and monetary properties that are worth understanding clearly.
Ethereum's monetary policy has changed multiple times. It launched with a large premine allocated to founders, the foundation, and ICO participants. The issuance schedule has been modified through multiple hard forks. In 2022, Ethereum switched from proof-of-work to proof-of-stake (the "Merge"), fundamentally changing its security model from energy-backed to capital-backed. While proponents celebrate reduced energy usage, this change means Ethereum's security now depends on staked capital rather than real-world thermodynamic work — a trust model closer to traditional finance than to Bitcoin's physics-based security.
The DAO hack of 2016 is a defining moment in Ethereum's history. When a smart contract bug led to $60 million being drained, the Ethereum community chose to roll back the blockchain — literally rewriting history to reverse the theft. This decision, while understandable from a victim's perspective, demonstrated that Ethereum's ledger is mutable when enough stakeholders agree. Bitcoin's response to similar pressure has always been the opposite: the rules are the rules, and no one gets to change the ledger. This philosophical difference is not trivial — it goes to the heart of what makes a monetary network trustworthy.
Key Points
- Designed as a general-purpose smart contract platform, not as sound money
- Monetary policy has been changed multiple times, unlike Bitcoin's fixed 21 million cap
- Switched from proof-of-work to proof-of-stake, removing energy-backed security
- The DAO rollback proved the ledger can be changed when stakeholders choose to do so
- Large premine and identifiable leadership create centralization risks Bitcoin avoids