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Showers soak more then pools
(hackertalks.com)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.
Another point is that the air after a shower is VERY humid, compared to being under the sun after swimming