OK, so there has been concern because calculations of the expected amount of matter in the universe have come up shy, right? So they come up with “dark matter” to “make everything ok”. My hypothesis is that we don’t need to justify the missing matter. Why couldn’t the matter have been sucked up into black holes and been destroyed or(and this is a little more edgy) spewed out somewhere else, perhaps even to another time? Do these calculations include this possibility? Can one estimate the amount of matter in a black hole has by its gravitational pull?
“I would far rather be ignorant than wise in the foreboding of evil.”
-Æschylus. 525-456 B. C.