Once that 50% threshold is reached, the reward deduction hits 100%, phased in over 18 months.
Authors include Ethereum Foundation's Justin Drake and ETHCC co-founder Jerome de Tychey, who argue extra staking now brings diminishing security value.
Critics say cutting issuance could push out smaller solo validators while favoring large custodial staking providers.
Bitwise's Steve Berryman argued institutional adoption depends on predictable monetary policy, and mid-course issuance changes undercut that.
EIP-8363 was published just two days before the deadline for proposals targeting Ethereum's next upgrade, raising concerns there isn't enough time to weigh its impact.
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