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Thus is the nature of knowledge and of discovery? This is why the Scientific Method was invented, correct?


Part of the scientific method is knowing when to say "we don't know yet". We don't know how to define "habitable" yet, so we should stop saying it.


You quoted "So far as has been observed". How much more hedging do you need? Basically you're arguing for something useless; that no definition be made until there is 100% certainty, regardless of caveats. Such a high bar gives us no utility.




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