However, the rate at which the size of Ethereum's validator set is growing will soon make Holesky's value obsolete. As of September 15, 2023, there are 806,759 active validators on Ethereum. Since enabling staked ETH withdrawals during the Shanghai/Capella upgrade on April 12, the number of active validators has increased by 43%. Without developer intervention, the number of Ethereum validators is expected to exceed 1 million by the end of this year, assuming the maximum number of validators are activated on Ethereum and no validators leave the network. The Ethereum mainnet will reach a validator size of 1.4 million under these same assumptions by March 2023.