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People born after 2000 have never seen the cosmic microwave background on their TV set.
(startrek.website)
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. A showerthought should offer a unique perspective on an ordinary part of life.
I find one every once in a while, on the side oft the road aswell, unfortunately some idiot usually sprayed graffiti on it for some dumbass Instagram post, or I have no room at my place ATM.