Ethereum's scalability solutions, such as the transition to Proof of Stake (PoS) in Ethereum 2.0 and Layer 2 solutions like rollups, aim to enhance transaction throughput and reduce gas fees. However, these advancements may further marginalize small miners. PoS replaces energy-intensive mining with staking, requiring validators to hold significant ETH, which favors wealthier participants. Layer 2 solutions offload transactions, potentially reducing on-chain mining rewards. Sharding and rollups demand advanced infrastructure, increasing operational complexity and costs, which small miners may struggle to afford. While these solutions improve network efficiency, they risk centralizing control among larger players, diminishing small miners' influence and profitability in the Ethereum ecosystem.