Anthropic Principle

Weak anthropic principle
The conditions necessary for the development of intelligent life will be met only in certain regions that are limited in space and time. That is, the region of the Universe in which we live is not necessarily representative of a purely random set of initial conditions; only those favorable to intelligent life would actually develop creatures who wonder what the initial conditions of the Universe were, and this process can only happen at certain times through the evolution of any given universe.

Strong anthropic principle
A more forceful argument than the weak principle: It implies that if the laws of the Universe were not conducive to the development of intelligent creatures to ask about the initial conditions of the Universe, intelligent life would never have evolved to ask the question in the first place. In other words, the laws of the Universe are the way they are because if they weren't, no intelligent beings would be able to consider the laws of the Universe at all.

See also: Anthropogenic.

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Subjects: Physics