Most won't like this answer. I think people dislike the idea of a nobody impacting world history. But, if I take "today" to mean literally one day, sadly I thi

Most won't like this answer. I think people dislike the idea of a nobody impacting world history. But, if I take "today" to mean literally one day, sadly I think assassinating a world leader is one of the few ways to significantly impact the world 1000 years from now. (An example [0]). It would have to precipitate a major event though (something like a world war). [0] https://en.wikipedia.org/wiki/Gavrilo_Princip https://en.wikipedia.org/wiki/Gavrilo_Princip