One year on from its landmark transition to proof-of-stake (PoS) through "The Merge", Ethereum, the world's leading smart contract platform, has experienced a massive drop in energy use, enhancing its eco-friendly appeal. However, the path forward is peppered with technical obstacles.
The Merge and its impact
On September 15, 2022, Ethereum's mainnet was combined with the Beacon Chain, a separate proof-of-stake blockchain, culminating in one of the most ambitious upgrades in Ethereum's history.
This shift from the energy-intensive proof-of-work (PoW) consensus mechanism to PoS led to a staggering 99.9% reduction in the platform's total energy consumption, dropping from approximately 21 terawatt hours under PoW, as reported by The Cambridge Centre for Alternative Finance.
Ethereum goes deflationary
Furthermore, the Ethereum economy has now turned deflationary. This implies that the issuance of new Ether (ETH) to bolster the network's security is now overshadowed by the quantity of ETH being permanently removed from circulation.
As per ultrasound.money, since The Merge, over 300,000 ETH, valued at roughly $488 million, has been burnt. If current burn rates persist, Ethereum's total supply will decrease by about 0.25% annually.
Market dynamics and external factors
Despite assumptions that Ethereum's price would rocket due to this deflationary effect, external factors, such as the banking crisis and soaring inflation, have tempered any substantial price gains.
Moreover, Bitcoin's price growth in this year's first quarter outpaced that of Ethereum, apparently benefiting from traditional finance's instability due to the banking predicament.
The rise of stakers and liquid staking
In the wake of PoS, Ethereum's security now depends on stakers, not miners. With the subsequent Shapella upgrade in April 2023, significant amounts of ETH were directed towards staking.
Leading the charge in this arena are liquid staking providers, Lido and Rocket Pool. With a total of $19.5 billion worth of ETH currently held in liquid staking protocols, Lido reigns supreme, holding a whopping 72% share, according to DefiLlama.
Decentralization concerns
Despite the praise for PoS's inclusivity, the dominance of liquid staking providers, notably Lido Finance, has raised eyebrows. Lachlan Feeny, CEO of Labry, expressed concern about the considerable influence held by such staking entities. Efforts to decentralize Ethereum further, like the proposed 22% limit rule for staking providers, have seen resistance, with Lido abstaining from the vote.
Centralization in Ethereum nodes
Beyond the staking ecosystem, Ethereum's node client diversity remains a pressing issue. Highlighted at Korea Blockchain Week, Ethereum's co-founder, Vitalik Buterin, called for efforts to reduce the centralization risks posed by reliance on major web service providers.
His proposed solution? Stateless clients, which could lower data requirements for running a node to almost nothing.
Looking ahead
While these solutions are on the horizon, Buterin believes addressing these centralization issues might take another decade or two. As Ethereum embarks on its next phase, balancing decentralization, efficiency, and security remains at the forefront.
