I cannot help remembering the sixth chapter of the novel Gadfly by Ethel Lilian Voynich which carries a heart wrenching ...
Humans like things that look like other things. A great example are faux LED tea light candles, with a plastic “flame” and flickering orange LED to recreate the effect of their waxy brethren.
A sharp decline in sunspot activity in the 17th century has long puzzled astronomers.