Ugh, I thought you meant "common ancestor" of us and our 'lil banana eating friend, got you now...
EVEN if creation of life is a PURE chance no matter how impossible that chance is, in the INFINITE universe which is INFINITELY old it could happen
Roger Penrose used very pessimistic approach in his "famous" probability of evolution calculation and it's only fair to say that this is just one out of few mistakes he made in his career...
How about this approach:
Suppose there was a lottery with 10000 numbers where each number had an equal (.0001) chance of being selected. That's a fairly small chance of winning. But suppose you play 7500 of those numbers. What are your chances of winning?




