I hadn’t come to that conclusion until you said it… but yes, that is about right. I’m not sure I would say all evidence is anthropic- I would prefer saying that all updating involves a step of anthropic reasoning. I make that hedge just because I don’t know that direct sensory information is anthropic evidence, just that making good updates with that sensory information is going to involve (implicit) anthropic reasoning.
Can I paraphrase what you just said as:
“If many-worlds is true, then all evidence is anthropic evidence”
I hadn’t come to that conclusion until you said it… but yes, that is about right. I’m not sure I would say all evidence is anthropic- I would prefer saying that all updating involves a step of anthropic reasoning. I make that hedge just because I don’t know that direct sensory information is anthropic evidence, just that making good updates with that sensory information is going to involve (implicit) anthropic reasoning.