@reasoning logic,
Interesting TED talk. I think you posted this in another thread, but no problem watching it again.
That's one way of looking at it I suppose. An argument for moral realism.
I agree that fully constrained by the laws of nature are our conscious minds and their states are natural phenomena. I also agree that morality depends on the existence of conscious minds. Our minds experience various forms of wellbeing and suffering, and that moral concerns are really concerns about wellbeing and suffering. Conscious minds and their states being natural phenomena, fully constrained by the laws of nature (whatever these turn out to be in the end). Therefore, there must be right and wrong answers to questions of morality that potentially fall within the purview of science, which is an interesting way to view I suppose. He says himself that his philosophy is a form of utilitarianism.
My thought on the matter is he is claiming that moral truths can be delivered by science, when in fact all he has shown is that science is a very helpful means to one of philosophically discovered end, and that is utilitarianism.