If you want to do a little experiment, but half a dozen eggs, put have in the fridge and leave half on a shelf. Then after a day or so take the ones out of the fridge and leave on a shelf for a few days. The ones that were in the fridge will almost certainly go bad, while the others will still be fine.
Egg shells absorb water, hence the reason why eggs should not be washed unless they are going to be refrigerated.
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