Sodium Chloride
Take one atom of Sodium, mix it with one atom of Chloride and you get salt, whose entry in Wikipedia states the following: "Salt is essential for life in general, and saltiness is one of the basic human tastes. The tissues of animals contain larger quantities of salt than do plant tissues. Salt is one of the oldest and most ubiquitous food seasonings, and salting is an important method of food preservation." It's analogous to fiction. Whereas salt is essential for our physical bodies, storytelling is essential for our minds. And that's where we come in. The bible is full of stories. Some, like the parables and the Psalms are short, while others, such as the Exodus from Egypt are longer. Even the proverbs can be read as (very) short stories. We are attracted to them from an early age and fiction is still the largest market in publishing. But the analogy also goes deeper. Despite the rumours, neither Chloride or Sodium are lethal to humans, in fact we have t...