through both layers.
Did you make:
one hole through the folded sheet?
Or:
two holes, one in each layer?
Both descriptions can make sense depending on what you are counting.
That same ambiguity is at the heart of the shirt puzzle.
The Layer Problem
A shirt isn’t a flat sheet of paper.
It is a three-dimensional garment.
It has a front and a back.
If a tear passes through the front and back panels, you may see an opening from the front and another opening from the back.
Some people
