The Ethereum co-founder suggested reducing validator signatures to lighten the load and make predicting future loads more accurate.
Ethereum co-founder Vitalik Buterin has proposed a way to reduce the load on the Ethereum blockchain and make its proof-of-stake (PoS) consensus “considerably simpler and lighter.”
On Dec. 28, Vitalik Buterin proposed a method of reducing the number of signatures that validators are required to make to keep the network running, thus reducing load.
Ethereum currently supports a very high number of validators, around 895,000, to try to achieve decentralization and allow regular people to participate in staking.
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Source: https://cointelegraph.com/news/vitalik-buterin-proposes-ethereum-pos-consensus-lighter-simpler