What’s the recipe for a myth? There’s no one formula, of course, but it seems as though gods or super-motivated humans are usually involved. Someone keeps rolling a stone up a hill, or makes fire, kisses a frog into a prince, gets swallowed by a whale, procreates, dies, gets reborn. A good myth usually requires a powerful natural or supernatural force.
The modern myth is trickier, especially in the supernatural department. It can be harder to recognize in the present, but they do exist and reveal themselves with time.