We emerged from a ‘chemical soup’; a soup that formed complex molecules. Some of these became catalysts for a variety of chemical reactions. Gradually (in billions of years), structure evolved and from them the first cell emerged. The first cell did not know what to do next. In spite of that, it went ahead, made mistakes, and produced another cell. The subsequent cells also made mistakes, learnt from the mistakes of others, learnt to compete and cooperate with each other. The vast knowledge thus accumulated, gave birth to versatility. If the first cell knew what was in store for it, and the way to reach there, it would not have made mistakes. Without mistakes (mutations), evolution would not have been possible. And if there was no evolution, we wouldn’t be here.