Using “know” to mean “have exactly 100% certainty” means you can’t prove a positive either. (I don’t “know” that the computer in front of me exists, but the probability that it is an illusion or trick is low enough for me to ignore.)
LessWrong wiki entry on absolute certainty
Using “know” to mean “have exactly 100% certainty” means you can’t prove a positive either. (I don’t “know” that the computer in front of me exists, but the probability that it is an illusion or trick is low enough for me to ignore.)
LessWrong wiki entry on absolute certainty