That is why they came up with the idea of dark energy and matter to explain the problems with the big bang. Remember you can’t see it, measure it, feel it, or detect it by any known means but we can say with 100% certainty that it is real.
It made the equations work.
This is so silly, it is not even wrong. The dark matter is known to be clustered around galaxies, not spread out between them.
Cant see it, can’t measure it, can’t find 90% of the mass nor energy in the universe, but their theoretical “math” says it must be there.
Magic is the simplestic answer. But isn’t one “miracle” even more logical?