Over 40 years ago I was in high school, had access to a computer, and did a simple programming exercise. I created some tables of how much money my dad was spe

Over 40 years ago I was in high school, had access to a computer, and did a simple programming exercise. I created some tables of how much money my dad was spending on cigarettes, and how much he would have if he invested it instead. IIRC the interest rates I used were from 1% to 10%. The price of a pack of cigarettes was somewhere in the neighborhood of $0.30. Maybe the tables went up to $1.00 a pack but probably no higher. Fast forward 40 years. Cigarettes are now about 30x as expensive as they were, but interest rates are somewhere near 0%. Times change!