There's no information here about whether the algorithm has successfully identified videos that will go viral before they actually do. I have a very simple alg

There's no information here about whether the algorithm has successfully identified videos that will go viral before they actually do. I have a very simple algorithm with one criterion. Look at the number under the youtube video. If it is very large, it went viral. I (cynically) can't help but wonder whether the researchers have discovered a formula for making lots of money from advertising firms. I notice almost no details are given of the algorithm.