Actually, you can. And it's been proven.
Cute. Whether it’s Steady State, Big Bang, or quantum fluctuation, creationists will take credit and say it proves their point.
No, you cannot identify a state of nothing in our present Universe. You can fudge and make axiomatic that anything below Planck lengtha nd Planck time is not real, but that is not the same as defining a state of nothing. In fact, Haisch, Rueda, and Puthoff have derived F = ma using quantum parton configurations, thus showing that inertia is due to real ‘things’ smaller than quarks acting upon quarks.