They could just require a higher stake, the price of eth is irrelevant.
Let's say hypothetically one eth was worth about a Satoshi, 0.05 cents or so. So they could just require 1,000,000 eth as a stake. Or ten times that. Or a hundred times that.
It's irrelevant what the price is, the choice of the stake amount is. If eth was inflationary, they could inflate the stake proportionally.
That’s not true, those are two different things. Requiring 100x the total number of possible stakers is 100x lower. Versus if the price increases 100x, that means the same number of possible stakers is possible, but it’s now 100x more expensive to do a 51% (or whatever the PoS % needed is) attack.
The ethereum protocol can choose whatever stake amount (in equivalent USD when they decide the bond to stake) they want. The currency being deflationary or not is irrelevant - the stake could be adjusted. The currency going up in down in value relative to ETH could be adjusted.
They could choose to require one gwei, one ETH, or one million ETH. That's your protection. The exchange rate from USD to ETH is irrelevant.
Would you agree that attacking Eth2's consensus requires a certain percentage [1] of total voting power? If so, then by extension, it requires a certain (somewhat different) percentage of the total Eth supply.
> The exchange rate from USD to ETH is irrelevant.
Unless the attacker already has a large enough portion of the Eth supply to execute an attack, they'll have to pay to acquire it.
[1] 1/3 voting power would theoretically let an attacker double spend by getting two conflicting forks committed; 2/3 would let them commit invalid and/or unavailable state.
No, the exchange rate is extremely relevant. Let’s say we need 2/3 of all ETH in order to launch an attack. If ETH is 1 penny, this is much easier for us to acquire than if ETH is $100.
I think you may be misunderstanding staking. Your vote is proportional to how much ETH you stake, it seems like you are picturing everyone gets 1 vote. The only reason for the minimum stake amount is for performance reasons
Let's say hypothetically one eth was worth about a Satoshi, 0.05 cents or so. So they could just require 1,000,000 eth as a stake. Or ten times that. Or a hundred times that.
It's irrelevant what the price is, the choice of the stake amount is. If eth was inflationary, they could inflate the stake proportionally.
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