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Part 2 · Chapter 2

Bitcoin vs Ethereum

AT A GLANCE

Bitcoin focuses on being sound, censorship-resistant money, while Ethereum is a programmable platform for decentralized applications. You'll compare design goals, supply, and use cases.

Digital GoldWorld ComputerDifferent Goals

Who Is This For?

  • Beginners deciding what to buy or use first
  • Users curious about how digital gold differs from a world computer

Learning Objectives

  • 1.Summarize the distinct purposes of BTC and ETH
  • 2.Contrast supply models, block times, and consensus choices
  • 3.Pick which chain fits a given use case
Section 1

Bitcoin Overview

Bitcoin was designed with one goal: to be the best money ever created. Simple, predictable, and impossible to corrupt.

Bitcoin (BTC)

Digital Gold · Store of Value · Sound Money

Consensus
Proof of Work
Mining with ASICs
Supply Cap
21 Million
Fixed forever
Block Time
~10 Minutes
Slow and steady

Key Properties:

  • Mathematically enforced scarcity
  • Most decentralized network
  • Longest track record (since 2009)
  • Conservative, security-focused upgrades
  • Limited scripting by design
  • Lightning Network for fast payments

💡 Bitcoin's philosophy: Don't trust, verify. Every change is scrutinized for years. The code prioritizes security and decentralization over new features. This conservative approach is why many trust it with significant wealth.

Ξ
Section 2

Ethereum Overview

Ethereum was designed as a programmable blockchain—a world computer where anyone can deploy applications that run exactly as programmed.

Ξ

Ethereum (ETH)

World Computer · Smart Contracts · DeFi & NFTs

Consensus
Proof of Stake
Staked ETH as security
Supply Cap
No Hard Cap
Dynamic (can be deflationary)
Block Time
~12 Seconds
Fast confirmations

Key Properties:

  • Full smart contract support (Solidity)
  • Home of DeFi ($50B+ TVL)
  • Largest dApp ecosystem
  • Active development and upgrades
  • EIP-1559 fee burning mechanism
  • Rollup-centric scaling roadmap

🔥 ETH Supply & The Burn

Since EIP-1559 (August 2021), a portion of every transaction fee is burned (destroyed). When network activity is high, more ETH is burned than created—making ETH deflationary.

New ETH Issued
~0.5% / year
To validators as staking rewards
ETH Burned
Variable
Depends on network activity
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Section 3

Head-to-Head Comparison

Let's compare Bitcoin and Ethereum directly across key attributes. Remember: different doesn't mean better—it means different purposes.

🧪 Block Speed Comparison

Watch how many blocks each chain produces in the same time period (simulated 2 hours):

Bitcoin
~10 min blocks
0
blocks produced
Ξ
Ethereum
~12 sec blocks
0
blocks produced
Simulated time: 0 minutes
Ratio: 0x more ETH blocks

📊 Full Comparison

Attribute₿ BitcoinΞ Ethereum
Primary PurposeStore of value, digital gold Programmable platform, world computer
ConsensusProof of Work (mining) Proof of Stake (validators)
Block Time~10 minutes ~12 seconds
Supply Cap21 million (fixed) No hard cap (dynamic)
Smart ContractsLimited (Bitcoin Script) Full (Solidity, Vyper)
Transaction Speed~7 TPS ~15-30 TPS (L1)
Energy UsageHigh (PoW mining) Low (PoS staking)
Decentralization~15,000+ nodes ~8,000+ nodes
Network Age2009 (oldest) 2015
Upgrade SpeedSlow, conservative Faster, more frequent

🎯 Which Should I Use?

Select a use case to see which chain is better suited:

💡 Many investors hold both: Bitcoin as their savings account (store of value) and Ethereum as their checking account (for active use and building). They complement each other.

Watch Out

Common Mistakes & Gotchas

These misconceptions about BTC and ETH lead to confusion and poor decisions.

🎯
Ethereum is trying to replace Bitcoin
They serve different purposes. BTC = money/store of value. ETH = programmable platform. They're complementary.
🔄
Bitcoin can't be upgraded
Bitcoin evolves slowly and deliberately (Taproot, SegWit). Conservative upgrades protect its monetary properties.
🔥
ETH supply is always inflating
Since EIP-1559, ETH burns transaction fees. During high activity, more ETH is burned than created—making it deflationary.
Gas fees mean Ethereum is too expensive to use
L2 rollups (Arbitrum, Optimism, Base) reduce fees to pennies. Most daily activity happens on L2s now.

⚠️ Key insight: The "BTC vs ETH" debate often misses the point. They're designed for different things. Asking which is better is like asking whether gold or the internet is better—it depends on what you need.

Test Yourself

Knowledge Check

Let's see how well you understand the differences between Bitcoin and Ethereum.

1

What is Bitcoin's primary goal?

2

How does Ethereum burn ETH?

3

Why are Ethereum blocks faster than Bitcoin blocks?

4

What is the maximum supply of Bitcoin?

5

For building a DeFi lending protocol, which chain is more suitable?

Next Steps

Continue learning: "How to Read Crypto Charts" — learn to interpret price action and market data
Hands-on practice: Compare BTC and ETH supply charts on ultrasound.money (ETH burn tracker) and Bitbo (BTC supply)