@joefromchicago,
You're dissappointed? What expectations do you have?
It is a very difficult point to explain in a few paras and now I note you are referring to 'an objective system of morality', which broadens the scope even more but I will start with the ontological aspect of the argument.
QM undermines the idea of atomism, which is the idea that the Universe consists of discrete eternal particles. Historically, atomism provided the philosophical basis for the idea that matter was the final reality. The simplest formulation of this view was that 'all that exists are atoms and the void'. Atoms were held to be eternally existing; all that changes are the ways in which they are combined. In early philosophy, this is where atomism (and materialism) sought to locate the eternal: as the ground or basis of material reality. This view was enthusiastically embraced by the European Enlightenment in the aftermath of the scientific revolution, and for some time was felt to be the most accurate paradigm of the nature of the universe.
But 20th century physics has put a complete end to that idea. First of all atoms were shown to be mainly empty space. Then the ontological status of the sub-atomic particle was shown to be doubtful as in some circumstances they appeared as waves, and in another as particles. The duality between waves and particles is a particularly difficult one to conceptualise, as they are not even the same kind of phenomenon. Finally such entities as electrons were shown to exist only as 'probability waves' - that is, a statistical, or mathematical, possibility that a measurement would identify the particle within a particular range at the time it was measured.
Quote: To account for the demonstrated facts, quantum theory tells us that an observation of one object can instantaneously influence the behaviour of another greatly distant object - even if no physical force connects the two. Einstein rejected such influences as "spook actions" but they have now been demonstrated to exist. Quantum theory also tells us that observing an object someplace causes it to be there. For example, an object can be in two, or many, places at once - even far distant places.
Quantum Enigma: Physics Encounters Consciousness By Bruce Rosenblum, Fred Kuttner, p 12.
The philosophical implications of these theories are very challenging and highly technical and I don't claim to have mastered them. However I believe that it is fair to say that they undermine the idea of a
mind-independent reality at the most basic level of existence. They certainly undermine the idea of classical atomism and materialism.
As far as 'objective systems of morality' go, which science provides that? How is 'scientific thought' an arbiter of moral value? What scientific reason is there for ethical decisions? I am sure it is not physics, and the idea that it is 'brain chemistry' is simply laughable. Social sciences, perhaps? Psychology? Where do you start?