Math equations are just models of reality.
At the end of the day the universe can break all the laws it wants to...
What are scientists going to do—give the universe a speeding ticket?
Lol.
Yes. The Earth has been through so many cataclysms in its history and these are only the ones that we know about, why would the universe be any different? I always thought it was silly to take the universe as it is today and then wind it backwards to the beginning and hope that everything just kind of works out. We have no idea what happened since the formation till now. The scientific method is built upon observation and otherwise it’s just all guess work like you say.
“The map is of the terrain.”