>What’s a natural kind? It's right there in the word, right in front of your face, just as plain as day. Everything that lives, dies. Everything. Period. That is the nature of mortality and intrinsic to the human condition. T'was ever thus. Even the sun in the sky will eventually burn out and collapse in on itself, becoming something other than that which it is now. "immortal" = "not mortal". Meaning deathless, forever. In other words, not human. Humans have been subjected to empty promises of godhood before, remember? Remember who made those promises? How'd that work out? Genesis 3: 4 And the serpent said unto the woman, Ye shall not surely die: 5 For God doth know that in the day ye eat thereof, then your eyes shall be opened, and ye shall be as gods, knowing good and evil. I'll put my faith in God, and entrust my soul to Him. And whoever wants to can put their faith in Ray Kurzweil and entrust their soul to a another lying satanic jew making the same false promises in his master's voice. https://en.wikipedia.org/wiki/Ray_Kurzweil "He was born to secular Jewish parents..." The nose always nose.