The beacon chain genesis happened four years ago on Dec 1, 2020.

The beacon chain genesis happened four years ago on Dec 1, 2020. With a modest 0.5M ETH staked on day one, the parallel PoS chain provided zero immediate benefits to users. And yet the seed blossomed to become the strongest foundation blockchains have ever seen: → 10K consensus participants → $125B economic security → economic finality via L1 slashing → 51% attack recovery via L0 slashing → 100% uptime No other PoW or PoS chain comes close—the gap is immense. This is the power of long-term thinking, of taking the long and hard road. Looking ahead, there is a tremendous opportunity to cement Ethereum as the settlement layer for the internet of value. The beacon chain is far from perfect. There is a lot of work on a years-long upgrade journey. We want improved censorship resistance and MEV handling. We want smaller staking deposits, better delegation, faster finality. We want smarter issuance. We want full chain validation accessible to smartwatches, we want post-quantum security. In parallel to the consensus layer (CL) we want full danksharding at the data layer (DL) and native rollups at the execution layer (EL). I believe Ethereum can get it all. Many L1 improvements will ship incrementally every year for years to come. Some improvements like chain snarkification and post-quantum security will likely benefit from a holistic redesign. To complement L1 health upgrades, L2s will provide amazing performance improvements in months not years. Fast UX? Study ping-latency preconfs. Low fees and unbounded throughput? Study horizontal scaling of execution and DA. Synchronous composability? Study shared sequencing and real-time proving. The future of is bright. I invite you to get involved. Ethereum may just be humanity's most ambitious and exciting decentralised computing project.