Coming from a long and detailed discussion about the limits of Natural Selection, here: What are the limits of Natural Selection? An interesting open discussion with Gordon Davisson I realized that some attention could be given to the other great protagonist of the neo-darwinian algorithm: Random Variation (RV). For the sake of clarity, as usual, I will try to give explicit definitions in advance. Let’s call RV event any random event that, in the course of Natural History, acts on an existing organism at the genetic level, so that the genome of that individual organism changes in its descendants. That’s more or less the same as the neo-darwinian concept of descent with modifications. A few important clarifications: a) I use … Continue reading What are the limits of Random Variation? A simple evaluation of the probabilistic resources of our biological world