Board Thread:General Discussion/@comment-28702329-20181215114648/@comment-39186373-20190624140534

The problem is whether Time Stop suspends everything for 9 seconds or creates 9 seconds for DIO to move in a normally perceived instant.

The former means that outside of erased time, Diavolo is completely vulnerable to Time Stop.

On the other hand, the latter would provide a more significant advantage for Diavolo as he can easily catch Time Stop within his abilities since it's just an instant to him, no matter how long Time Stop goes. This gives DIO a much smaller window of opportunity to land a hit.