It's unnatural, it's said, to live without end, or to boost the body and brain beyond the norm. Yet we should regard transhuman transcendence as natural. Nature embodies within itself a tendency to seek new complex structures, to overcome itself to take on new, more effective forms. Nietzsche recognized this in his view of the universal will to power. More recently, we have partly uncovered this drive towards complexity through complexity theory, evolutionary theory, artificial life, and neurocomputing.
Overcoming limits comes naturally to humans.
The drive to transform ourselves and our environment is at our core. No one will punish us for opening Pandora's box, for equipping ourselves with wings of posthuman intelligence and agelessness. Our old myths, holding us back from radical innovation, were adaptive in our early history, when we lived on the edge of extinction. New techniques that changed ways of life could lead to the starvation of a community of primitive humans. Yes, we need to step carefully in modifying our brain function, our genes, and our physiology, but let us not hold back out of fear or false reverence for Nature as we find it.