The anthropic principle is the philosophical consideration that observations of the physical Universe must be compatible with the conscious life that observes it. Some proponents of the anthropic principle reason that it explains why the Universe has the age and the fundamental physical constants necessary to accommodate conscious life. As a result, they believe it is unremarkable that the universe's fundamental constants happen to fall within the narrow range thought to be compatible with life(weak anthropic principle IE no God is required for life).
The strong anthropic principle states that this is all the case because the Universe is compelled for conscious life to eventually emerge IE a God has designed it. Critics of the SAP argue in favor of a weak anthropic principle(similar to the one above) which states that the universe's ostensible fine tuning is the result of selection bias: i.e., only in a universe capable of eventually supporting life will there be living beings capable of observing any such fine tuning, while a universe less compatible with life will go unbeheld ( so no designer is required).
The strong anthropic principle states that this is all the case because the Universe is compelled for conscious life to eventually emerge IE a God has designed it. Critics of the SAP argue in favor of a weak anthropic principle(similar to the one above) which states that the universe's ostensible fine tuning is the result of selection bias: i.e., only in a universe capable of eventually supporting life will there be living beings capable of observing any such fine tuning, while a universe less compatible with life will go unbeheld ( so no designer is required).