> "the turtles are metaphors"

:( The turtles were real, not metaphorical: http://classicacorn.computinghistory.org.uk/8bit_focus/logo/...

(it fits the definition of metaphor 'One thing conceived as representing another; a symbol' but it has the feel of people saying "my niece thought the floppy disk save icon is a refrigerator because that's where you save leftover food" not realising that it was a real piece of fun/cute hardware many moons ago).