Ethereum (ETH), the second-largest cryptocurrency by market capitalization, has experienced significant growth over the past five years, with its native token appreciating nearly 1,700%. Its key feature of enabling smart contracts has positioned it as a versatile platform for decentralised applications (dApps) across various sectors, from finance to gaming and the metaverse. Ethereum's recent transition to a proof-of-stake (PoS) consensus mechanism in September 2022 aims to address concerns about its energy consumption and scalability, with estimates suggesting a reduction of over 99% in energy usage compared to its previous proof-of-work (PoW) system. While Ethereum boasts the largest developer community among cryptocurrencies, ongoing technical upgrades introduce inherent risks, highlighting the need for careful consideration by investors before committing funds.