add page on proof-of-stake FAQs

[jmcook1186]

Description

Adds a page on proof-of-stake FAQs as part of post-merge gaps epic.

Related Issue

#8285

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[minimalsm]

Incomplete review, but left a few questions / suggestions.

Looking good overall :-)

[minimalsm]

Ethereum's proof-of-stake mechanism is thought to be more secure than proof-of-work because the cost to attack is greater, and the consequences to an attacker are more severe.

• is thought to be

Can/should we use stronger language here? If we have a resource we trust, I think we should be able to make definitive statements if we believe them to be true.

[jmcook1186]

idk, i think until pos has been operational for a longer time and shaken off a few attacks, "thought to be" is better. Just my opinion.

[minimalsm]

idk, i think until pos has been operational for a longer time and shaken off a few attacks, "thought to be" is better. Just my opinion.

Fair enough. We've made our bed, so let's hope it's more secure 😆

[minimalsm]

In a few years, I wonder if a lack of attacks is a testament to EthPoS security (i.e. will there be fewer attacks because of economic incentives?)

[minimalsm]

Suggested change

Yes, in the sense that the more ETH someone has to stake, the more validators they can run and therefore the more rewards they can accrue. The rewards scale linearly with the amount of staked ETH and everyone gets the same percentage return. Proof-of-work enriches the rich more than proof-of-stake does because richer miners that buy hardware at scale benefit from economies of scale, meaning the relationship between wealth and reward is non-linear.

The more ETH someone has to stake, the more validators they can run, and the more rewards they can accrue. The rewards scale linearly with the amount of staked ETH, and everyone gets the same percentage return. Proof-of-work enriches the rich more than proof-of-stake because richer miners that buy hardware at scale benefit from economies of scale, meaning the relationship between wealth and reward is non-linear.