"Does #DarkMatter Come From #BlackHoles Formed Before the #BigBang? "- #Slashdot
This hypotesis reminds me of "Tau Zero" from Poul Anderson https://en.wikipedia.org/wiki/Tau_Zero
Does Dark Matter Come From Black Holes Formed Before the Big Bang? - Slashdot
"The Big Bang may not have been the beginning of the universe," writes LiveScience, citing "a theory of cosmology that suggests the universe can 'bounce' between phases of contraction and expansion.science.slashdot.org