Fortune tellers typically tell you extremely vague things that are designed to trick you into interpreting them favorably; you hear what you want to hear. "Someone new will come into your life soon" or "Something exciting will happen next week" are not claims that can be disproved.

They certainly don't make hyperspecific claims like "this YouTuber traveled to Israel and changed his mind about the war there, as documented in a video he posted on August 18".