There's a popular adage that technology only becomes useful when it starts being used for porn. The reason is that, when the technology was thought up, the idea

There's a popular adage that technology only becomes useful when it starts being used for porn. The reason is that, when the technology was thought up, the idea was not to use it for porn, but for something else. However the fact that the porn industry has independently found the technology useful, despite it not being targeted at them at all, shows the true potential of the technology. The same can be said about social networks, except swap porn for nazis.