I really don't like describing McCain gaffes in that way. First of all, everyone who talks that much in public is going to occasionally say stupid shit. Perfectly well and good to make fun of it as it just comes with the territory, but I don't see any reason to link it to his age.
More than that, if there are reasons to have concerns about McCain having age-related mental impairment this is actually a serious issue, and not one to make light of. I'd hope the reporters covering him who have all that access would tell us if he did. An occasional brain fart is funny, but if it's a symptom of something deeper that's actually serious.
