Proto-verse

Proto-verses are very small/unstable universes, they appear all the time everywhere in every multiverse. They only last a trillionth of a secound which is why it makes them so unstable.

In the time they do survive they quickly produce even smaller particles at 5 trillion kelvin. These Proto-verses are about the size of one string.

You can see they vary in shape and sizes, they're most common shape is spheres and ovoids.

The true nature of Proto-verses is unknown but is predicted to be the same as an universe