Ethereum is the second-largest cryptocurrency after Bitcoin, launched in 2015 by Vitalik Buterin. Unlike Bitcoin, which is mostly used as digital money, Ethereum allows developers to build smart contracts—automated programs that run on the blockchain.
Why Ethereum Matters
Smart Contracts: Power apps like DeFi platforms, games, and NFTs.
Ether ($ETH ): The network’s currency, used to pay fees and interact with apps.
Decentralized: No central authority controls Ethereum.
Key Strengths
Huge developer community
Widely used in DeFi and NFTs
Recently upgraded to Proof of Stake (uses less energy)
Real Challenges
High transaction (gas) fees
Slower and more expensive than newer blockchains
Still improving scalability
Ethereum is a powerful, evolving technology—not a quick money scheme. It's best known for smart contracts and decentralized apps, but it’s still under development. Always research before investing.