I know I can look this up online but I’m hoping to engage in a conversation about this.
Why is dark matter the leading theory for the matter that’s not directly visible but detectable?
The proposed matter doesn’t interact electromagnetically but interacts gravitationally. Why isn’t this further proof of relativity? Why are scientists trying to invent a new mechanism for this when one already exists?
Matter inside a black hole would create the gravitation without being visible or interactive from our frame of reference. Isn’t this a win for GR? Why is dark matter required to reconcile this disparity? Why can’t the matter be locked up in black holes?