Its not really hard to predict normal scenarios. From the article " it helped the company to predict that it would sell more frozen yoghurt in the last two days

Its not really hard to predict normal scenarios. From the article " it helped the company to predict that it would sell more frozen yoghurt in the last two days than it has in the whole year." For me, that is an extreme outlier and if they are able to predict even that, then there is something special about this algorithm.