Fundamentally, a piece of information is as valuable as it can lend evaluation, weight, alignment, etc. to other data. If someone comes up and asserts that God is a gigantic turnip, the datum has very little value. It sheds no light on anything. Some other datum, such as the idea that all life forms have certain common denominators to their behavior such as self-determination and the achievement of survival, (assuming such a datum matched individual experience) would have a lot more value.