Actually, it would. I just don’t have 20 years to wait!
The calculations make perfect sense. It took only 23 calories a day to gain 47 lbs over 20 years (240 months) and I have lost it in 19 months. 240 divided by 19 is about 12.5. Therefore I am losing at a rate 12.5x faster than I gained.
In order to lose what I have, I cut out about 300 calories per day. Which is almost exactly 12.5x 23 calories per day.
It just proves that it’s all just a simple equation. Eat more than you burn and you will gain weight. Burn more than you eat and you will lose weight.