
We often hear that we’re all connected by six degrees of separation—that you can link yourself to anyone on the planet through just a handful of people. But with billions of people in the world, how could that possibly be true? And in a world of social media and constant connectivity, is that number shrinking or growing? https://www.nature.com/articles/s41598-025-98072-2 Some people just seem to have all the luck. Opportunities appear, things fall into place, and they end up in the right place at the right time. Is that just...