Is living in nihilism living?I think there is a certain wisdom in Harisha Bm's answer here: "Living always has a meaning, it's just that it's realised late." And I'm not talking about death-bed conversions.
Near the end one will think and feel about life in a more profound way than one is used to doing. I can never help believing there is an element of pose in much popular nihilistic thought. Life and death are serious, and these are not serious times.
Nihilism is a conception. It is possible to live in a conception. Being courageous enough to fulfill a life while dealing with the possible conclusion that there is only a glaring nothingness awaiting you on the other side is a manner of the highest strength; especially when that life is conducted in righteousness and philanthropy. Seems to me as one of the highest degrees of charity as well.
It might be helpful to get clear on what it means to be living.
If by living you just mean that definition that seems to depend on biological complexity and various smaller parts making a larger part that meets certain qualities (has input/output, reproduces, etc.) - then I don't see how a value system could affect this- perhaps a nihilist might argue the point that there are no such truth values of whether she or he is living, but the rest of us can plainly see she or he is by a more common or reasonable context.