I think Nietschze over emphasises the power of the individual, by ridding oneself of a percieved external super-power one can most certainly tap into a well of power, that is, the power of the self, however, this power is not some limitless source, no one can ever be perfect. Though...I do believe that to aim for perfection is something that everyone should do, just dont ever expect to reach the highest level, though...I'm sure sometime in the future, sadly one which we will most probably not see, humankind will use technology to make up for natural failings and aid in its quest to reach for the Sun, and it shall be a golden age.