For the fatalists, if you know what your fate is,

a. then you can take steps to change it; that is why the Oracle at Delphi was so important to the ancient Greeks.
b. then anything you do could change it so knowledge of our fate is dangerous because with it you might accidentally change it and entirely disrupt the natural order of all things
c. then it doesn't really matter because anything you do to avoid your fate will turn out to be the very thing you must do to bring about that fate.
d. none of the above