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There are plenty of people who are stupid or disconnected from reality under the age of 70. Take George Bush for example. Call it what you want, disoriented, confused, out-of-touch, disconnected. If McCain supporters accuse you of ageism, simply reply you never mentioned his age and further point out that their accusation DOESN'T discount or deny your initial charges and ask them if they then agree with you, if not what is their counterargument?