Is There a Zero Point Energy in Every Quantum Field?

Every quantum field has to have energy in it. That's called this zero point energy. And so we think that every quantum field has a minimum energy in it, and any field with energy is always expanding space. So why is that? Why does space itself expand when a field has energy?, you might ask. It's just so of like the structure of the equations in general relativity, which seem to describe what we are seeing," says Willa Cevallos.