A more hopeful view from Einstein:

"The vacuum decay, a new concept

The entire universe, our piece of vacuum and even inside of atoms, would swarm with particles and antiparticles virtual that would exist for very short time and are constantly renewed.
When real particles travel in a vacuum that is everywhere in the universe, vacuum state fluctuations create their mass. The vacuum presents itself to it, viscous, it is this viscosity that gives mass to particles.
The particles of the vacuum upon cooling to 2.7 K today, order its selves as the spins of the atoms in a magnetic field, they are all polarized in a certain direction, which gives a certain viscosity to vacuum.
This viscosity of the vacuum imposes mass to particles, this field is the Higgs field. It is possible that at the beginning of the universe, the Higgs particles were disordered, then all particles of matter had zero mass, but with inflation and cooling of the universe, the Higgs particles become polarized, providing strength to the acceleration of elementary particles, even neutrino. In other words, the Higgs field slows down quarks that make up the objects we see, raise, and move.
In summary, the inertial mass of a particle is resulting from the degree of interaction with the Higgs field. The Higgs boson is a particle that is extracted from the vacuum causing high-energy collisions. Therefore this is an indication that a true vacuum state is impossible, as approaching a vacuum state would cause Higgs Bosons to spontaneously disrupt the completion of the vacuum state.

In 1934, Georges Lemaître (1894 − 1966) pointed out that the effect of the cosmological constant of relativity was similar to that of the energy density of the vacuum state. In other words, that the energy of the vacuum is compatible with the relativity requires that it impose a negative pressure, exactly opposite to its energy density. This negative pressure is a repulsive force that would explain the accelerating expansion of the Universe, seen everywhere, specifically since 1998.
Unfortunately the effect of this energy of the vacuum state, is infinite, about 10120 times larger than the value observed. This therefore makes this concept unusable.
The accelerating expansion of the Universe is currently assigned to a mysterious « dark energy ».
To account for all observations we must appeal to dark matter, the energy of the vacuum, dark energy, inflation, but nothing sticks with our theories and this requires us to imagine exotic concepts.

It is possible that we are on the eve of a major upheaval in physics. Currently our theories are facing a wall like in the early 20th century when we went from classical mechanics to relativity and classical physics to quantum physics.
« It is absolutely possible that beyond what our senses perceive, there are hiding unsuspected worlds. » Albert Einstein(1879-1955)"

If we can trust Einstein, our Universe is infinite, self-renewing, and everlasting.
ElDorado57.