At risk of repeating myself: determining whether damage has passed information-theoretic death falls under the purview of physics and cryobiology, among a variety of other fields. That is not at all the same thing as saying that it is “in the area of expertise” of every physicist and cryobiologist, and thus a (hypothetical) survey of them would be “expert opinion”.
I agree with what you are saying here and think you’ve struck the right balance between acknowledging genuine competence and expecting universal expertise over general fields of knowledge. Elsewhere and at a different time it might be worth having a conversation about how to select experts in subjects similar to this one. There is something of a recursive problem in as much as it requires knowledge to know which experts are the ones that are relevant or knowledge to know which person to ask-which-people-should-be-asked. Different beliefs about how to choose authorities to believe seems to be a huge source of disagreement over a variety of problems and frequently results in “reference class tennis”.
I agree with what you are saying here and think you’ve struck the right balance between acknowledging genuine competence and expecting universal expertise over general fields of knowledge. Elsewhere and at a different time it might be worth having a conversation about how to select experts in subjects similar to this one. There is something of a recursive problem in as much as it requires knowledge to know which experts are the ones that are relevant or knowledge to know which person to ask-which-people-should-be-asked. Different beliefs about how to choose authorities to believe seems to be a huge source of disagreement over a variety of problems and frequently results in “reference class tennis”.