Transhumanism on a basic level is about mankind merging with machines, but that says nothing about the real implications of these technologies. Merging with machines is not an end; it is merely a stepping stone on the path of evolution that has no end. The greatest implication of these technologies is longevity escape velocity, also known as indefinite lifespan. It's important to note that we are not talking about some Faustian bid for immortality. We are not talking about metaphysical notions of everlasting life of an immortal soul in some spiritual existence; that is a fairy tale.
Longevity escape velocity is the eventuality of curing all major diseases, including age-related cellular senescence, making cancer chronic, rapid prototyping vaccines for emerging viral epidemics, gene therapies, stem cell therapies, nanite-enhanced immune systems, and other technologies of the post-singularity world. The human body remains mortal, but in this paradigm, in the new epoch, accidental death and murder will become the only practical way to die. Even accidents will be unthinkably rare as we can easily imagine technological automation all but eliminating accidents. Indefinite lifespan doesn't mean everlasting life, but it does mean lifespans in the hundreds, thousands, or even tens of thousands of years. We can imagine if we have uploaded our consciousness to an artificial substrate, our consciousness could be sustained as long as there was a power source, perhaps 10,000 years. It remains a finite lifespan but not particular limiting.
Billions of men have lived and died. It is an unthinkable tragedy. All these men and women, their hopes, dreams, & aspirations, their creations & innovations, their human potential lost forever. We delude ourselves with notions of an afterlife in which our souls can thrive forever, so we don't have to grapple with the reality that when we die all is lost forever. Dead is dead. It is nothing to fear from a certain perspective. I was not aware of my nothingness before I was born; I will not be aware of my oblivion after death. Death itself is nothing to fear, but the loss is terrible. We have so much creativity, love, ingenuity, and joy to experience and to share with the world. Death may be nothing to fear, but death is the enemy around which we should all be united in common cause. Indefinite lifespan will be the spoils when we win this battle with death. The implications of that, the question of what comes next, I explore in great detail in my novel, but suffice it for now that it means we will get to share our creativity, love, ingenuity, and joy for a while longer.http://youtu.be/gsAMmWj3J3I