Cryptocurrency Deep Dive
Ethereum vs Bitcoin: Key Differences Explained
Ethereum, stablecoins, exchange mechanics, and self-custody.
In this lesson
- The core philosophies of Bitcoin vs Ethereum
- What changed at The Merge
Key takeaways
- 1Bitcoin optimizes for sound money; Ethereum for programmability
- 2The Merge moved Ethereum to Proof of Stake
- 3They're complements as much as competitors
Lesson summary
Bitcoin and Ethereum are not trying to be the same system.
Mental model
Getting Ethereum vs Bitcoin straight
Bitcoin and Ethereum are not trying to be the same system. Bitcoin optimizes for monetary simplicity and durable settlement; Ethereum optimizes for programmable applications.
- The core philosophies of Bitcoin vs Ethereum
- What changed at The Merge
Mechanics
How to reason about Ethereum vs Bitcoin
Bitcoin uses a UTXO model and limited scripting for conservative settlement.
Ethereum uses accounts and smart contracts for flexible execution.
The Merge moved Ethereum from Proof of Work to Proof of Stake, changing its security and issuance profile.
- Bitcoin optimizes for sound money; Ethereum for programmability
- The Merge moved Ethereum to Proof of Stake
- They're complements as much as competitors
Example
Ethereum vs Bitcoin, applied
BTC may be held as a scarce monetary asset, while ETH may be used to pay for execution in DeFi and rollup ecosystems.
Common mistakes
How Ethereum vs Bitcoin trips learners up
Declaring one universally better usually ignores the job each network is designed to do.
Risk notes
Staying safe around Ethereum vs Bitcoin
Bitcoin faces fee-market and mining centralization questions; Ethereum faces smart-contract, staking, and ecosystem complexity risks.
- State Bitcoin's primary design goal.
- State Ethereum's primary design goal.
- Explain what The Merge changed.
Practice
Put Ethereum vs Bitcoin to work
- State Bitcoin's primary design goal.
- State Ethereum's primary design goal.
- Explain what The Merge changed.
Review
Key terms
- Bitcoin (BTC)
- The first cryptocurrency, launched in 2009 — a decentralized, hard-capped (21M) digital money.
- Custody
- Who controls the private keys. Custodial = a third party holds them; non-custodial = you do.
- DeFi
- Decentralized Finance — permissionless, composable financial services built on smart contracts.
- Ethereum (ETH)
- A programmable blockchain — a 'world computer' that runs smart contracts and dApps.
- Proof of Stake (PoS)
- A consensus method that selects validators by the amount of crypto they stake as collateral.
Source notes
Editorial references
These references are starting points for verifying the mechanisms, risk checks, and product context behind this lesson.
Before you continue
Can you do these?
- State Bitcoin's primary design goal.
- State Ethereum's primary design goal.
- Explain what The Merge changed.
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A core design difference is…