That’s the thing. The math says they’re both correct, and that it depends on the viewpoint of the observer.
I’m inside a car moving at 60 mph. I throw the ball forward (let’s ignore air resistance) at 30 mph.
Me, who’s inside the car, sees the ball move forward at 30 mph.
You, who’s outside the car, sees the ball move at the car’s speed PLUS the throw speed (60 + 30 =90 mph)
So, the ball is moving both at 30 mph and 90 mph. How can that be? It depends entirely upon your reference frame (inside the car? Outside the car? Inside another car moving at 40 mph?). The ball moves at all these speeds, and they are all “correct” within universal terms.
I’m not necessarily disagreeing with you here, but thought I’d provide a counter argument.
A group of children are dying of a horrible, deadly disease that can only be cured with the bark from a specific tree. So we go into the forest and chop this tree down to save the children from an excruciating disease.
A squirrel had built its entire home in that tree. That tree was everything to the squirrel. Now the squirrel has nothing and will suffer because we chopped down its home.
How do we explain this to the squirrel? Well, we can’t. No matter how hard we try, we can’t explain why we needed to destroy its home. The squirrel is physically incapable of understanding.
Playing devils advocate here, perhaps the reason for the need for human suffering is so beyond our understanding and comprehension that we are just physically incapable of understanding. Maybe we’re just squirrels, and human suffering needs to happen for some greater purpose unbeknownst to us.