Is what Bill said here an offhand comment?

To preface the image, this is when Ford first meets Bill, what he says before the line pictured is: "Whoa, don't have a heart attack!"

Does this mean Ford will die of a heart attack when he's 92? Or is it just an oddly specific joke?

To preface the image, this is when Ford first meets Bill, what he says before the line pictured is: "Whoa, don't have a heart attack!"

Does this mean Ford will die of a heart attack when he's 92? Or is it just an oddly specific joke?