Quote Originally Posted by DogOfDanger View Post
Yes but you're not thinking abstractly and idealistically enough, because instinct, and predecessors of our human instincts, were honed over billions of years in natural, and relatively homeostatic conditions which all succeeded in producing life. Evolutionary forces even exerted themselves on cellular levels when the very first cells were forming... and those forces never stopped molding us until we came to be in this current form. Thus instinct has been finely tuned in a way that it is sensitive to even very small disadvantages in survival / reproduction. There is so much that went into fine tuning us biologically that it is beyond imagination.
"Human" DNA includes virus DNA. Hardly fine-tuning.