Blockchain & Crypto

When you step into Blockchain & Crypto, a network of distributed ledgers that records transactions without a central authority. Also known as decentralized finance, it drives a wave of digital assets and services that change how money moves.

One of the core pieces of this ecosystem is Cryptocurrency, digital money secured by cryptographic techniques. Blockchain gives cryptocurrency its trust factor, letting anyone verify balances without a bank. Another pillar is Ethereum, a programmable blockchain that runs smart contracts. Ethereum requires smart contracts to automate agreements, which opens the door for complex applications. Those applications live in the world of DeFi, decentralized finance platforms that operate on blockchain. DeFi leverages blockchain to remove intermediaries, letting users lend, borrow, and trade directly.

A more technical angle comes from MEV, Maximal Extractable Value, the profit miners can take from ordering transactions. MEV influences Ethereum transaction ordering, creating risks for users who might pay higher fees or see delayed trades. Understanding MEV helps you spot hidden costs when you use DeFi apps on Ethereum. The relationship between MEV and Ethereum shows how subtle nuances in block production can ripple through the whole crypto market.

All these pieces—cryptocurrency, Ethereum, DeFi, and MEV—fit together like a puzzle. The ecosystem encompasses decentralized finance and requires smart contracts to run. When you grasp how each entity works, you can navigate the space with confidence and avoid common pitfalls.

What You’ll Find Below

Below this intro you’ll find a curated list of articles that dive deeper into each topic. From a clear explanation of MEV in Ethereum to practical guides on using DeFi platforms, the collection aims to give you both the theory and the tools you need. Keep reading to see how the concepts connect and what actionable steps you can take next.

Bramwell Thornfield 1 November 2025

What is Web3 in Crypto? A Simple Breakdown for Real Users

Web3 in crypto means owning your data and digital assets on a decentralized internet. No big companies in control. Just you, your wallet, and code that works for you.

Bramwell Thornfield 15 October 2025

Understanding Ethereum Gas Fees: What They Are and How They Work

Learn what Ethereum gas fees are, how they work after EIP‑1559, and practical ways to estimate and lower them for everyday transactions.

Bramwell Thornfield 17 September 2025

Understanding MEV in Ethereum: Definition, Risks, and Impact

Learn what MEV (Maximal Extractable Value) is in Ethereum, how it works, its impact on users, common attack types, and the tools aiming to mitigate it.