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Web3 vs Web2 – key differences | Aspect | Web 2 (today’s Internet) | Web 3 (next‑gen decentralized web) | |--------|--------------------------|-----------------------------------| | **Control & ownership** | Centralized platforms (Google, Facebook, Amazon) own the data and the services. Users give up control in exchange for convenience. | Decentralized protocols (blockchains, smart contracts) give users ownership of their data, assets, and identity. No single entity can unilaterally change th

Gas fees in Ethereum are the costs users pay to have their transactions or smart‑contract operations processed and recorded on the blockchain. ### How Gas Works | Concept | Explanation | |---------|-------------| | **Gas** | A unit that measures the amount of computational work required to execute an operation (e.g., a simple ETH transfer, a token swap, or a complex smart‑contract call). | | **Gas Price** | The amount of ETH a user is willing to pay per unit of gas, expressed in **gwei** (1 gwe