Pointer is from a new generation of DCs, based on methods developed in recent years, which can only be done with computers, several programs were used - commercial ones and free open source - the continuation of that will be purpose-written image-making programming code - coming soon !
explanation:
the image shows 300 figures, against the background of interactions.
but, each figure could represent a thousand, ten thousands, a million, hundred million... such is the landscape of Big Data, the social media, where individual behaviour and preferences add up, like raindrops, seen from above they make patterns, drifting across meteo charts.
look closely and you will see such a form behind figures, arrow-shaped, that is the Pointer from the title.