You must log in or register to comment.
Not just matter but time as well. That’s what they were referring to. There is no “before time”.
Regarding your rethorical question: go find an answer and you’re sure to win the Nobel Prize.
Absolutely nothing is a reliable constant except the speed of light.
But the speed of light changes. It can be slowed down. It just doesn’t change while moving through outer space (a vacuum). The maximum speed is the constant.
