I didn't used to know ( I do now ) WHY flat gingerale calms a queasy stomach, why tea and dry toast helps that too , why chicken soup is good for a cold, that "beef tea" ( beef broth ) is good for sick people, and a whole horde of other of fashioned remedy for things and people. I just know that ALL of that stuff WORKS!
So take your snark and shove it!
Ok, why does flat ginger ale calm a queasy stomach??? Seems to me that while you're waiting for your ginger ale to go flat, your queasy stomach would have already errupted...