According to physics, stopping time would comes with a lot of hindrances such as:
- When stopping time, everything including molecules are stopped. You are stuck where you because you can't move air molecules out of the way. Also breathing would be literally impossible.
- With all molecules stopped, there would be no heat generated. Your environment would become zero degrees Kelvin (the temperature at which molecules stop moving) and you would freeze to death.
- Stopping time stops photons of light from moving, so you are unable to see
Also if Dio actually stopped time, how would this work if his stand only has a 10 meter radius? That means he's creating numerous time ripples because his time stop doesn't apply to anything beyond 10 meters.
Would this mean that instead of stopping time, he is actually moving at the speed of light? According to one hypothetical question on the physics stack exchange, moving at the speed of light would make time appear to stop.