text: Not having personally read the Copenhagen papers (the debate/dialog) I can't speak in great detail on the topic.  But basically Einstein and Bohr represented different ends of the philosophical spectrum. Einstein, a man of faith, was a determinist and Bohr a pragmatist. The debate which took place over the course of several science meetings revolved around a series of arguments Einstein presented to discredit Quantum Mechanics. Bohr, being a key player in the development of QM, took on the task of defending the this new theory. Such debates go on all the time in the sciences.\n\nWho was right and who was wrong is still up for grabs, though Bohr did an admirable job arguing his case, so much so QM is the working theory used by today's scientists.  There are however a few holes left unexplained such as the relationship between gravimetric forces and electromagnetic forces. A theory bridging these two elements could well lead to another set of debates as where the QM crowd will attack the presenters of the latest greatest theory.  This process is called a paradigm shift and is also a key step in the scientific process.