I never knew it was called nothing, but the QV, the ZPE, the Higg's field, the Dark energy of the different theories are all viewed as being omnipresent.
As described previously the 'nothing; as described by Hawking based on his description of the origin of our universe is not no-existence.
Not necessarily omnipresent. In fact it is more likely that the Dark Matter and Dark Energy are a hypothetical part of of the nature of our universe, Dark Matter and Dark Energy are descriptive concepts of observed properties of our universe.
Again, check my previous posts that address what is the 'nothing' referred to by Hawking. It is not no-existence.
The following reference may help you understand Quantum time on the Quantum scale of our physical existence. Note: the bold gives some insight that explains that time on the quantum scale is not the continuous time/space of our universe.
www.exactlywhatistime.com
Quantum Time
Max Planck is sometimes considered the father of quantum theory In the first half of the 20th Century, a whole new theory of physics was developed, which has superseded everything we know about classical physics, and even the Theory of Relativity, which is still a classical model at heart.
Quantum theory or
quantum mechanicsis now recognized as the most correct and accurate model of the universe, particularly at sub-atomic scales, although for large objects classical Newtonian and relativistic physics work adequately.
If the concepts and predictions of relativity (see the section on
Relativistic Time) are often considered difficult and counter-intuitive, many of the basic tenets and implications of quantum mechanics may appear absolutely bizarre and inconceivable, but they have been repeatedly proven to be true, and it is now one of the most rigorously tested physical models of all time. Time at the Quantum scale only is a way to measure the time of discrete Quantum events, and is not continuous.
Quanta
One of the implications of quantum mechanics is that certain aspects and properties of the universe are
quantized, i.e. they are composed of discrete, indivisible packets or
quanta. For instance, the electrons orbiting an atom are found in specific fixed orbits and do not slide nearer or further from the nucleus as their energy levels change, but jump from one discrete quantum state to another. Even light, which we know to be a type of electromagnetic radiation which moves in waves, is also composed of quanta or particles of light called
photons, so that light has aspects of both waves AND particles, and sometimes it behaves like a wave and sometimes it behaved like a particle (wave-particle duality).
An obvious question, then, would be: is time divided up into discrete quanta? According to quantum mechanics, the answer appears to be “no”, and time appears to be in fact smooth and continuous (contrary to common belief, not everything in quantum theory is quantized). Tests have been carried out using sophisticated timing equipment and pulsating laser beams to observe chemical changes taking place at very small fractions of a second (down to a femtosecond, or 10−15 seconds) and at that level time certainly appears to be smooth and continuous. However, if time actually is quantized, it is likely to be at the level of
Planck time (about 10-43 seconds), the smallest possible length of time according to theoretical physics, and probably forever beyond our practical measurement abilities."