Late last Saturday, Facebook shared some dizzying statistics that begin to illustrate the scale of the online impact of the New Zealand massacre as the gunman's video spread across social media.

According to the social network, the graphic, high-definition video of the attack was uploaded by users 1.5 million times in the first 24 hours. Of those 1.5 million copies of the video, Facebook's automatic detection systems automatically blocked 1.2 million. That left roughly 300,000 copies ricocheting around the platform to be viewed, liked, shared and commented on by Facebook's more than two billion users.