Natural selection in its most general form means the differential survival of entities ( Read more... )

(black swans and white swans) It illustrates a severe limitation to our learning from observations or experience and the fragility of our knowledge. One single observation can invalidate a general statement derived from millennia of confirmatory sightings of millions of white swans. All you need is a single black bird ( Read more... )

... the world seemed too large and too silent for them [emigrating parents] to make a choice ( Read more... )