So I had this dream once..

[Sethomas]

I understand your logic, but it's not flawless. My grandfather was lung cancer waiting to happen; smoked cigarettes since age twelve, inhaled cigars for the past thirty years. Around age 65 he never ever missed a day of work, then one day he was in perfect health through the day then hit by a strong case of pneumonia-like symptoms at night, including attacks of asphyxiation. Dead within three months.

So no, unless you first develop emphysema or however it's spelled, lung cancer is seldom predicated.