Original: Those attempting to explain the anthropic principle often invoke ideas of multiple universes or an intelligent designer , both controversial and criticized for being untestable and therefore critics of the anthropic principle may point out that the anthropic principle is more of a philosophical concept , not a scientific one .
Simplified: The anthropic principle is a principle that says that the universe is how it is because it must allow for the eventual creation of us , as observers . The anthropic principle was thought of in 1974 , by the astronomer Brandon Carter .