You might be interested to look up the Williamson-Van der Mark model. It says that an electron is just light that loops in on itself and shows how properties li

You might be interested to look up the Williamson-Van der Mark model. It says that an electron is just light that loops in on itself and shows how properties like mass, charge and spin can emerge from such a geometry. It's fascinating because it opens up the question whether every particle could be described in terms of different ways light can loop in on itself.