you are talking about justification while i am talking about truth. ofcourse you are justified to belief something without having absolute certainty but you cannot know the absolute truth if you do not have absolute certainty. so you cannot make the absolute claim that morals are objective as long as you cannot refute humes skeptiscism.

however in your day to day life you do not have to take it into account with everything you do, that would be impossible.

whether you are justified in believing something is something else than whether what you believe is true.


because with the chair i can counter with the following

you see yourself sitting in a chair, (lets agree that this is enough justification to claim that you are sitting in a chair) so you are justified in believing that you sit in a chair, yet actually you are a brain in a vat and a scientist had stimulated you the belief that you are sitting in a chair and has stimulated you the vision that you see yourself sitting in a chair. so even though you are justified in believing that you sit in a chair you dont know that you sit in a chair because you are not sitting in a chair but you are a brain in a vat. and since you can never know for 100% that you are not a brain in a vat (even though its highly unlikely that you are) you can never absolutely know that you sit in a chair.

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