Genesis Block: The first block in a blockchain is called the genesis block. It serves as the foundation for the entire blockchain and has a unique significance in the history of a cryptocurrency.

GPU Mining: GPU stands for Graphics Processing Unit. GPU mining involves using graphics cards to mine cryptocurrencies. This method is particularly common in the mining of certain cryptocurrencies like Ethereum, where the algorithm is designed to be GPU-friendly.

Gwei: Gwei is a denomination of the cryptocurrency Ethereum's native unit of value, Ether. It is named after Wei Dai, a computer scientist and cryptographer. Gwei is used to measure the cost of gas in Ethereum transactions.

Greed: In the context of cryptocurrency and investing, "greed" refers to an excessive or insatiable desire for profits, often leading individuals to take on higher risks or make irrational decisions driven by the potential for significant financial gains  

"GameFi": refers to the intersection of blockchain-based technologies, particularly non-fungible tokens (NFTs) and decentralized finance (DeFi), with the gaming industry. It represents a new paradigm where blockchain and cryptocurrency elements are integrated into gaming ecosystems, creating unique opportunities for players, developers, and investors.