Merge pull request #15861 from ethereum/staking-max-eb

fix: outdated max-eb copy in solo staking faq

Author: corwintines

public/content/staking/solo/index.md

@@ -134,9 +134,13 @@ A <em>validator</em> is a virtual entity that lives on Ethereum and participates
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 <ExpandableCard title="Can I deposit more than 32 ETH?">
-Each key-pair associated with a validator requires exactly 32 ETH to be activated. More ETH deposited to a single set of keys does not increase rewards potential, as each validator is limited to an <a href="https://www.attestant.io/posts/understanding-validator-effective-balance/">effective balance</a> of 32 ETH. This means that staking is done in 32 ETH increments, each with it's own set of keys and balance.
+Yes, modern validator accounts are capable of holding up to 2048 ETH. Additional ETH over 32 will compound in a step-wise manner, increasing in whole-number increments as your true balance increases. This is known as your <a href="https://www.attestant.io/posts/understanding-validator-effective-balance/">effective balance</a>.
 
-Do not deposit more than 32 ETH for a single validator. It will not increase your rewards. If a withdrawal address has been set for the validator, excess funds over 32 ETH will be automatically withdrawn to this address during the next <a href="/staking/withdrawals/#validator-sweeping">validator sweep</a>.
+To increase the effective balance of an account, and thus increase rewards, a buffer of 0.25 ETH above any full-ETH threshold must be crossed. For example, an account with a true balance of 32.9 and an effective balance of 32 would need to earn another 0.35 ETH to bring it's true balance above 33.25 before triggering an increase in effective balance.
+
+This buffer prevents also prevents an effective balance from dropping until it has gone 0.25 ETH below it's current effective balance.
+
+Each key-pair associated with a validator requires at least 32 ETH to be activated. Any balance above this may be withdrawn to the associated withdrawal address at any time via a transaction signed by this address. Any funds over the maximum effective balance will automatically be withdrawn on a periodic basis.
 
 If home staking seems too demanding for you, consider using a <a href="/staking/saas/">staking-as-a-service</a> provider, or if you're working with less than 32 ETH, check out the <a href="/staking/pools/">staking pools</a>.
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