Even the National Post is getting in on the act. It's true if a scienmajistic type says it but only if.
If this takes place, either tomorrow or in ten years, you're going to need a vault. Any survival plan that does not have a vault in it somewhere is a bad plan.
It could be a vault built by somebody else. A government public works project. Or an underground subway station. It could be in your backyard.
To survive in this world, a vault is necessary. It is childish to live as if it were otherwise.
This planet could be characterized as very hostile at times and it regularly goes through cycles where the only humans that survive do so in a vault. It may be a cave or a sewer pipe but it's a vault, underground and protected from the things that take place on the surface. Pretending that vaults are only for paranoids and fearful people is itself an infantile viewpoint. To hold this paradigm is to die and be replaced by those holding a better paradigm.