Goldilocks Conditions
Goldilocks conditions The Earth is ideally located in a Goldilocks condition —being neither too close nor too distant from the Sun. A theme in Big History is what has been termed Goldilocks conditions or the Goldilocks principle , which describes how "circumstances must be right for any type of complexity to form or continue to exist," as emphasized by Spier in his recent book.For humans, bodily temperatures can neither be too hot nor too cold; for life to form on a planet, it can neither have too much nor too little energy from sunlight. Stars require sufficient quantities of hydrogen , sufficiently packed together under tremendous gravity, to cause nuclear fusion . Christian suggests that the universe creates complexity when these Goldilocks conditions are met, that is, when things are not too hot or cold, not too fast or slow. For example, life began not in solids (molecules are stuck together, preventing the right kinds of associations) ...