Caloric. Dark matter. Cosmological constant.
We like placeholders for the unknown.
Isn't that how equations get solved?
Pretty much anything known entered through such placeholder, it's just that equations could be connected more easily.
It's not like Higgs field is something you can directly observe
Primordial black holes.
Don't forget phlogiston.
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Isn't that how equations get solved?
Pretty much anything known entered through such placeholder, it's just that equations could be connected more easily.
It's not like Higgs field is something you can directly observe