ETH’s DeFi Dominance: Ethereum powers 60% of DeFi’s $100B TVL at $1,562. Aave, Uniswap thrive, but gas fees deter users. Layer-2s like Optimism cut costs, boosting adoption. ETH’s PoS saves energy, yet Solana gains ground. Will ETH hold its DeFi crown, or lose to faster rivals in 2025?