Physicists speculate that, early in its history, the universe shifted from a "false vacuum" state to a "true vacuum" state. what is the significance of this transition?

he metastability of the standard model to which current data points implies that we live in a “false vacuum” and that there is a global minimum of the Higgs field at high energy. Our false emptiness, by tunnel effect, can travel to true vacuum.

Explanation:

The theory of the false vacuum has been used to explain what existed in the universe before the Big Bang was produced, since when this energy stored in a small region is released, the false emptiness is supposed to disintegrate.

It has been proposed that our universe is currently, in fact, in a state of false emptiness, which could be transformed, by means of a tunnel effect, into true or authentic vacuum.

If so, the transition to this would occur in the form of a bubble that would appear at any point in space and that would immediately begin to expand at the speed of light, turning the false vacuum into true vacuum, so that no one If you find out of that bubble, you may notice it.