Does it really matter? I guess the reverse (and addictive) logic is to say "I shall keep drinking to help ensure that I do not get liver disease." Hmmm, pretty sure everyone agrees that this logic will lead to death.
I used to look in the mirror at my eyes when drinking to see if they were turning yellow. (makes me sick and sad to type that!) Sometimes I might still look even when sober just to check. However, in those cases I sort of just shrug and realize that I am atleast giving myself the best possible chance of being healthy. Doing everything I can. If liver disease shows up after quitting then I guess it is fate, God's will, or just "life" but at least you did your best to put the odds in your favor and to live whatever time you have left in a peaceful, productive way. I can live with that more easily than drinking myself to death and removing all doubt.