Dpar comments on Your Strength as a Rationalist - Less Wrong
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Well, what can I say? I simply don't consider the vague recollection of reading something somewhere credible evidence of anything, and I stand by that. However, the amount of people that took issue with this statement did open my eyes to the fact that the definition of word "evidence" is not as clear cut as I thought it to be. Not sure if there's any way to resolve this difference of opinion though.
The easy solution is to stop arguing about the definition of evidence. This community uses it to mean one thing, you're using it to mean something else, and any sort of conflict goes away as soon as people make clear which definition they're using. Since this community already has an accepted definition, you would be safe in assuming that that definition is what other posters here have in mind when they use the word "evidence". By the same token, you should probably find a more precise way to refer to the definition of evidence that you are using in order to avoid being misinterpreted.
That's fair enough. However, judging by what I've read, this community's definition of evidence seems to constitute just about anything ever written about anything. How would you then differentiate evidence, from rumor, hearsay, speculation, etc.?
The wiki should be a good starting point for answering this question. What is Evidence? may also be helpful.
Short version: rumor, hearsay, and speculation are evidence, albeit of a very weak variety.
Well that clarifies things quite a bit. I find this definition of evidence surprising, especially in this community, but very interesting. I'll have to sleep on it. Thank you for the references.
Rumor, hearsay, etc. falls under our definition of evidence, just weak evidence, or probably very indirect (for example, if there is a rumor that A, it might constitute evidence against A being true, given other things you know).