Speculative Fiction writers love to apply this trope to the Theory of Relativity, The Theme Park Version of which says, 'If you go fast enough, you'll alter the flow of time, and you can Time Travel to the future or the past.' Characters who can't travel through time get the opposite effect: They can speed up so fast, it's as if time stops for the rest of the world. However, several teen and kid heroes have used it to quickly clean up after a wild house party or to finish in five minutes all that homework that had to be put off to defeat the Monster of the Week. Whether it's permanent or only for a single TV episode or comic book issue, whether it's from being struck by a lightning bolt, defying forces like gravity and air resistance, or using Super Serum, 'speed' usually only manifests through running.
Super speedsters are not just faster than your average human (Otherwise, they might as well be cheetahs). When it's not incorporated with Flight, it's at least the next best thing.
