Six degrees of separation isn’t just a party trick—it’s backed by some neat math and simulations that show how random shortcuts and “weak ties” in our social networks turn them into tiny worlds where any two people are just a few steps apart. By modeling everything from disease spread to viral videos, you see firsthand how hubs (those ultra-connected folks) and preferential attachment (the rich-get-richer rule) make these shortcuts inevitable.
Along the way you’ll learn why a random friend of a friend often knows more people than you do, how quickly an idea (or a bug) can sweep the globe, and even how game theory like the Prisoner’s Dilemma ties into our everyday choices—showing that your behavior, tiny as it seems, can ripple through the network and change the world.
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