these random dudes start making random guesses and call them prediction, and there is only two possible scenarios. price either moves in that way and they become the "guru" so they start spamming their random guesses, or price doesn't go in that direction and they will simply be forgotten since there are lots of them making these random guesses.
and it goes both ways. it is not just predicting rise or fall.
it is interesting to see how some of them like MacAfee start to use this "guru" power too. he practically has a twitter pump group going on
or..
they make 5 predictions each month. all time stamped. and after 6 months just delete the 24 video's that were wrong. to only show the 6 videos that were right. all time stamped to show videos were made and published before the predicted event
and then promote that he only ever made 6 predictions and every prediction was correct... then beg for people to pay him membership fee's if they want prediction number 7