Talk:Falsification

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I disagree with falsification being necessary for a valid theory. For one, we don't know if it is falsifiable. The Anthropic Principle may not be falsifiable either because we may never be able to sample other universes, or at least all possible universes in the "probability space". However, it is still a valid theory.

This is confused.

• Nobody says that falsification is necessary for a valid theory. That way, only falsified theories would be valid. But this is probably just a mistake in wording.
• "we don't know if it is falsifiable" - there are things that are definitely not falsifiable whether true or not, such as the existence of X (for every X). For every real theory, one has to be able to say: "you can falsify this theory like this..."
• The weak anthropic principle is not a theory. It's an idea; it's an argument for or against something; but not a theory. Not even a hypothesis.
• The strong anthropic principle is not a theory either, for the reason you gave. --tk (t) 14:10, 7 Aug 2005 (BST)