>> A single organism reproducing once is a non-event, evolutionarily speaking. True, but a single organism with a new trait failing to reproduce means that the

>> A single organism reproducing once is a non-event, evolutionarily speaking. True, but a single organism with a new trait failing to reproduce means that the trait cannot be passed on, and therefore does not exist in the population in an evolutionary sense. You absolutely can't ignore individuals in the evolutionary process.