If your argument was ‘old people claim to still hear the highest frequencies’ you may have a point. But if you claim that a 70 year old audiophile with 40 or 50 years of experience in this hobby can’t make a judgement on cables anymore I have to disagree. A 65 year old golfer will know exactly if his new putter is any good because of his experience in using putters for over 40 or 50 years.