Human nature, as I define it, is the set of cognitive and behavioral patterns that are innate in human beings, regardless of culture and specific upbringing. These are patterns passed down to us by evolution. With humans, though, we seem to be unique in our ability for metacognition – thinking about our thinking and our behaviors. Does that give us the ability to change our innate human nature?
Natural rights don’t exist, except in the human mind. They are a way for a social species to maintain social cohesion. But, as useful as natural rights may be in deciding how to organize society, they are not fundamental; instead, they are derivative of what humans, in general, desire.
Since at least World War 1 the idea of war as being all about glory and heroism has seen massive disillusionment. Most people, I think, would agree that war is not a good thing, even if some think it a necessary thing. But technological arms races, both during war and in peacetime, generate a plethora of technological advances. That raises the question: should futurists and transhumanists welcome war in order to usher in greater and faster technological advances?
Albert Camus famously said that the most important question in philosophy is whether or not to commit suicide. He posed this problem because he saw humans as inhabiting a hostile, meaningless universe, all the while spending their lives seeking meaning. Thus, human existence is absurd.