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this post was submitted on 04 Aug 2023
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Explain Like I'm Five
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RAM needs a current to keep it's data, if there is no power it will forget very fast. The SSD won't forget anything if power fails.
To save re-writes you would have to have data that only resides in the RAM memory part of the SSD, which, again, is delicate. Also SSDs basically have this, a bit of more durable flash memory which acts as a write back cache.