Notas del episodio
I read from devil's darning needle to devolution.
Dragonflies and Damselflies are just long and skinny so obviously one would call them the "Devil's Darning Needle".
https://en.wikipedia.org/wiki/Dragonfly#Dragonflies_in_culture
But there's also a plant!
https://en.wikipedia.org/wiki/Clematis_virginiana
More info (but not a lot) about devilwood, a kind of olive.
https://en.wikipedia.org/wiki/Cartrema_americana
If you want to know more about "Devil's Theory", read this book. ...