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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.
People born before 2000 think older technology just evaporated the minute the millenium ticked over.
Like when the black and white world suddenly got colorized! My grandpap told me about them old days - when the lawn, the sidewalk and the sky were just different shades of gray.
Grandpa was telling you about 50 shades of grey?
Grandpa knew things. Apparently so did grandma.