For most people, the Decade Challenge is an interesting, sometimes humorous viral trend that encourages them to take a look back at who they were in 2010 while appreciating who they've become as they prepare to enter 2020.
Typically, these pictures do little more than highlight the physical changes someone's gone through — ditched fashion trends, radically altered hairstyles, weight loses and weight gains, etc.
But recovering addict Jason Wickline's own comparison pictures go even farther and prove that personal change can be much more than just superficial.