> the drive to immortality is ego wanting to live longer is not unnatural, i was listening to a russian doctor doing an interview the other day and the argument he used was: because we are living longer now, cancer has become a bigger issue as a consequence of larger lifespans, therefore he believes that if cancer was cured, some other type of disease would invariably show up.  i am paraphrasing, i believe what he said makes a lot of sense.
Brazil