How Vacuum Decay could Destroy the Universe

I’ve looked at some of the scariest things in the universe, from black holes, to Thorne-Zytkow objects to Magnetars, but the horror of these things all pale into insignificance when compared to the innocuously titled vacuum decay.

If quantum tunnelling occurred with the Higgs field this would create a little bubble of universe where the Higgs field was at a lower energy level and therefore more stable. This bubble of stability would then cause the universe around it to undergo the same change and so on. This bubble of stability would expand throughout the universe at the speed of light, and this would not be good, well certainly not for us.
This change to the Higgs field would change the laws of physics, we don’t really know what effect it might have but since the Higgs field affects the mass of particles, it may affect that. It might be something fairly minor in universal terms such as changing the mass of the neutrino but it might affect the mass of other fundamental particles. It may mean that protons and neutrons are no longer able to hold themselves together in the nuclei of atoms or even the protons and neutrons themselves may fall apart.

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