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https://www.extremetech.com/computing/how-do-ssds-work
，这一点在同城约会中也有详细论述
- High-trust or low-trust environment? (same tool, different failure modes)
As a postscript, we ought to ask if the same reasoning applies to rationals; if it does, that would contradict our earlier argument that rational numbers can only have a handful of 2-good solutions. To show that there is no contradiction, note that in the rational case, s can conceivably reach zero (i.e., a / b can be an exact approximation). Next, rewrite r as p / q in the left-hand portion of the earlier inequality: