Why are artemidorus and the soothsayer trying to reach Caesar as he makes his way to the capitol?

Artemidorus and the soothsayer are trying to warn Caesar of the impending danger he faces as he approaches the Capitol. The soothsayer famously warns him to "beware the Ides of March," while Artemidorus attempts to present a letter detailing the conspiracy against him. Their urgent warnings highlight the theme of fate versus free will, emphasizing that despite their forewarnings, Caesar remains oblivious to the threats surrounding him.