Ethereum co-founder Vitalik Buterin has outlined his vision for a “plausible roadmap” for Eth2, presenting a future where the largest smart-contract platform can increase its scalability while meeting high standards for trustlessness and censorship resistance. 

In a Monday post titled “Endgame,” Buterin presented a thought experiment for how the average big blockchain — defined by very high block frequency, high block size and thousands of transactions per second — can still be considered sufficiently trustless and censorship-resistant. The obvious trade-off for this level of scalability is the centralization of block production. Buterin’s solutions, as presented in the blog post, do not address the centralization issue, but still provide a roadmap for implementation.

With respect to the solutions, Buterin suggested “a second tier of staking, with low resource requirements,” to carry out distributed block validation; “introduce either fraud-proof or ZK-SNARKS to let users directly (and cheaply) check block validity” directly; and “introduce data availability sampling to let users check block availability [and] add secondary transaction channels to prevent censorship.”

With these updates, “We get a chain where block production is still centralized, but block validation is trustless and highly decentralized, and specialized anti-censorship magic prevents the block producers from censoring,” Buterin explained.

Related: Vitalik Buterin proposes calldata limit per block to lower ETH gas…


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