generated at
Creatio ex materia
物質からの創造
Antimetabole
Creatio ex nihilo
Empedocles
Eternity of the world
Jainism and non-creationism
Melissus of Samos
Nothing from Nothing (Billy Preston song)
Principle of sufficient reason
Problem of the creator of God
Spontaneous symmetry breaking
Vacuum energy
Why there is anything at all

https://en.wikipedia.org/wiki/Creatio_ex_materia