Predicting the future is fun
But when your predicting is done
Don't bet on your hunch
Or the fatidic crunch
Will strike you down like a gun.

fatidic (fay-TID-ik) adjective

Of or relating to predicting fates; prophetic.

[From Latin fatidicus, from fatum (fate) + dicere (to say). Ultimately from Indo-European root deik- (to show or to pronounce solemnly) that is also the source of other words such as judge, verdict, vendetta, revenge, indicate, dictate, and paradigm.] per Anu