世界に vs 世界的に, when to use?


<https://www.youtube.com/watch?v=ihGfOC6H4ow> so in this video on Youtube, the
title uses "世界に", yet the thumbnail uses 世界的に. What is the difference, why
couldn't they simply say "世界に有名Youtuber" (they didn't use a な(!)?). Any
explanation would be appreciated, thanks :)




First, 世界に有名 is ungrammatical. It should be 世界で有名 as others say.

に as in 世界に注目されている denotes the agent of passive voice, in short, it means
（日本のYoutuber）who is stared **by** the world.

