Understand the Technology
Go under the hood — blockchains, Ethereum, layer 2s, alternative chains, and where AI fits in.
5 steps · intermediate
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- 1IntermediateNodes and Decentralization: What Actually Keeps a Blockchain HonestA blockchain is only as decentralized as the network of nodes that run it. Here's what nodes actually do, why running them matters, and how decentralization — not just the word — is what makes a chain trustworthy.
- 2BeginnerWhat Is Ethereum? A Beginner's Guide to the World ComputerEthereum is a blockchain that runs programs called smart contracts, powered by a cryptocurrency named ether. Here is what it does and how it differs from Bitcoin.
- 3IntermediateConsensus Mechanisms: Proof of Work vs Proof of StakeHow does a network of strangers agree on who owns what, with no one in charge? Consensus mechanisms are the answer — and Proof of Work and Proof of Stake solve it in very different ways, with different trade-offs.
- 4IntermediateUnderstanding Layer 2s: How Rollups Make Crypto Faster and CheaperBase blockchains can get slow and expensive when busy. Layer 2 networks, especially rollups, fix this by handling transactions off to the side and settling back to the main chain.
- 5IntermediateWhat Is Solana? The High-Speed Blockchain ExplainedSolana is a fast, low-fee smart-contract blockchain often compared to Ethereum. This guide covers what it does, how it differs, and its honest trade-offs.
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