the function on the t-shirt is ok to exist in complex system, the result is x^2*y^2=-1
then x=±1, y=±1i (where i stands for imaginary part and eqls √(-1)
nvm I got what you were talking about, I didnt even think about relation between formula and the curve.
It's confusing because of rewinding and turning some chapters into dreams, and it's random. but in the end I would say the story is unique and worth reading.
U gotta be disgusted and touched by the depression chapters several times.