To me the question has always been: Does infinity exist in nature? Infinitely small things (even infinitely small nothingness) is to me the relevant question a

To me the question has always been: Does infinity exist in nature? Infinitely small things (even infinitely small nothingness) is to me the relevant question as we may have it within our reach. Infinitely large things are more of a perpetual argument that I don't know whether one can argue about physically (although mathematically one could try). To me the difference between QM and relativity is exactly continuity. This is the key question.