Dio and Jotaro's stand : r/StardustCrusaders

In JoJo's Bizarre Adventures, how does Jotaro and Dio have the exact (albeit stronger/weaker) stand ability? Isn't it supposed to be unique to every person? How can they both use The World?

In JoJo's Bizarre Adventures, does Jotaro have the same stand power as Dio did? Can Jotaro stop time as well? - Quora

JOJO's Bizarre Adventure: Stardust Crusaders OST - Jotaro Kujo vs Dio

If there could be only one protagonist who would it be, and why is it Jotaro? : r/StardustCrusaders

Jodio Joestar - JoJo's Bizarre Encyclopedia

I edited and replaced the Stand users with their Stand/abilities : r/ StardustCrusaders

Watch JoJo's Bizarre Adventure Season 2 Volume 2 Stardust Crusaders: Battle in Egypt

USED) Doujinshi - Jojo Part 3: Stardust Crusaders / Jotaro x Dio (Look at) / ズルズル

Is it ever explained why Jotaro and Dio have the same stand? What is your fan theory? - Quora