Yup, you're absolutely right!
So our superhero opens the front door,
gets hit by sunlight,
immediately accellerates to the speed of light,
immediately is stopped by a carbon dioxide molecule,
gets hit by sunlight,
immediately accellerates to the speed of light,
immediately is stopped by an oxygen molecule,
gets hit by sunlight,
immediately accellerates to the speed of light,
immediately is stopped by a nitrogen molecule,
gets hit by sunlight,
immediately accellerates to the speed of light,
immediately is stopped by a dust particle,
...
