This is our existence. Infinity is a paradox in and of itself, is it not? Or is it anything at all? Then again, on a fundamental level, are these questions really worth pondering? Should one just accept such concepts are out of grasp for the mortal man to understand? Is the attempt to understand such concepts a mere distraction from our true purpose here? What is our true purpose here in this physical plane, this incredible experience we call life? I believe there as many answers to that particular question as there are people who ask it, although the answer is not subjective at all. I believe we are here to learn what is right and to do it.
What is right can be conflicting depending on who you ask. How do you determine the ultimate truth of what is inarguably right for all?
I don't determine what is right, the laws of nature do. Karma is not subjective, the laws of nature, of which there is no escape will ultimately break those who try to break them. This is how we learn what is right and what is not, if not in this lifetime, hopefully in the next.