This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
Sometimes we find that obscure pure mathematics does describe reality when no one expected it to. Riemannian geometry is one such example.
Complex numbers, and a bunch more things too