> [From abstract:] While intercellular competition weeds out nonfunctional cells, it may also select for cells that do not cooperate. Thus, intercellular competition creates an inescapable double bind that makes aging inevitable in multicellular organisms.<p>My imagination goes to a scene where a spotlight shines up onto the clouds flashing the "Ray Kurzweil" signal. Summoning him predict that some form of human immortality will arrive <i>just in time</i> so that people exactly his current age can confidently assume to live forever.