Why is Cosmic Ancestry necessary? Isn the theory that life on Earth arose here spontaneously a perfectly adequate theory?
A. No. The theory that life can arise spontaneously from nonliving chemicals is speculative and “…will remain so until living creatures have been synthesized in the biochemical laboratory. We are a long way from that goal.” J.B.S Haldane wrote those words in “The Origin of Life,” in 1928. The goal looks farther away now than it did then. Q.