April 1, Vitalik Buterin published a new proposal to improve the protocol Ethereum (EIP 960), according to which the maximum volume of the ETH proposal can be limited to 120 204 432 ETH.
Accordfing, this number is equivalent to multiplied by two volumes of the ETH, implemented in 2014 during the project's crowdsale.
Thus, Buterin intends to make significant changes in the monetary policy of the platform, whose investment attractiveness has often been criticized by many representatives of the crypto community. So, if the bitcoin offer is strictly limited to only 21 million coins, then the Ethereum protocol rules are arranged in a completely different way - the ETH issue is limited to 18 million coins a year.
According to Buterin, the new proposal is designed to "ensure sustainable economic development" of the platform.
In the longer term, the supply would exponentially approach the max cap and the rewards would exponentially approach zero, so if hypothetically Ethereum stays with proof of work forever, this would halve rewards every 744 days. In reality, however, rewards will decrease greatly with the switch to proof of stake, and fees such as rent (as well as slashed validators) will decrease the ETH supply, so the actual ETH supply will reach some equilibrium below MAX_SUPPLY where rewards and penalties/fees cancel out, and so rewards will always remain at some positive level above zero.
As an alternative, the creator of Ethereum also proposes to consider limiting the emission of ETH to 144 million coins.