What two things appealed to Macbeth's hubris to make him belive he was undefitable? Even thouhgh they turned out differnet then what Macbeth Expected, how did these predictions end up being true?
Once Macbeth gets the prophecy from the witches, his secret desire to be king is brought to the surface and his unchecked ambition will allow him to do anything to achieve this goal. Macbeth's ego underestimates the cost of getting his heart's desire, to be king, and therefore does not anticipate the horror and evil that he will unleash upon nature by his vicious deeds.
Macbeth almost believes that since he has received the prophecy, that getting rid of all those who are in his way to the throne is his right, his duty. His wife convinces him that this is his opportunity and therefore, he must seize the moment.
Macbeth's arrogance, combined with Lady Macbeth's manipulation, serve to convince Macbeth that the throne awaits him, if only he will act like a real man and kill the king. Once the killing starts, the bodies start to pile up. Macbeth feels indestructible because of the witches second prophecy, that no man born of a woman can kill him. He feels immortal. But there is an exception to the piece of information that the witches have given him, and he never considers. That there is a man not born of woman, but one who has been ripped from her womb.
Macbeth fears no one because he puts great faith in the witches prophecies, putting your faith in the powers of darkness never turns out the way one expects. Shakespeare tells us that the cost is always higher than the prize. Its not worth it!