On the triangle in the excerpt above —
"A golden triangle can be split into
a golden triangle and a golden gnomon.
The same is true for a golden gnomon.
A golden gnomon and a golden triangle
with their equal sides matching each other
in length are also referred to as the obtuse
and acute Robinson triangles.
These isosceles triangles can be used to
produce Penrose tilings."
— Adapted from Wikipedia (Wikipedia's word
"bisected" is replaced above by the word "split.")
The previous post dealt with women and lies.
Related material — Quilt Prize in this journal.