GGG does not explain anything at all. If environment is radically different then genetics will quickly follow that difference.

In a world of cause and effect everything we see has a cause, a physical cause. What sort of sense does the concept of cause have outside of the physical? Let's just say that, for argument, we have non-physical effects today. What is the cause of those non-physical effects? Did any non-physical effects exist one million years BP? If not, how did we get from purely physical causality to non-physical causality? We know what "nature" means, and in the context of biological life it means genetics and the theory of evolution. What does "nurture" mean? I can't get anyone on the nurturist side of this debate to tell me what it actually means or, more importantly, from whence it comes. Before you can tell me that nurture is important you have to explain of what it consists.