Next time you are realizing that you will miss the big meeting due to your layover, maybe pop open this app, take a deep breath, and run through one of the exercises for your soul.
They figured some were absorbed by plants, some by animals, some by water and a large portion would float free and spread themselves all around the globe in a pattern so predictable that (this is the fun part) if you take a deep breath right now, at least one of the molecules entering your lungs literally came from Caesar's last breath.