Ah, I see.
Yes, I agree: as long as there's some mechanism for the relevant physical constants to vary over time, anthropic arguments for the "fined-tuned" nature of those constants can apply; anthropic arguments don't let us select among such mechanisms.
Thanks for clarifying.
Hm, only the first of the four scenarios in the grandparent involves physical constants varying over time. But yes, anthropic arguments don't distinguish between the scenarios.
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