the core question was an important one: should a site that is, effectively, a search engine, be liable for the content that is linked from that search engine, given that it hosted no infringing works itself.
The scientists have studied how magicians mix humor into their performances because a laughing audience is unable to pay attention to the magician's hand. The study also determined that there are various levels of misdirection that magicians use to trick an audience. These insights, which were previously unknown to scientists, suggest that humor and misdirection can help manipulate levels of attention.
Customers with unlimited plans, like diners bringing a healthy appetite to an all-you-can-eat cafeteria, might think they're getting the best out of the arrangement. But the carriers, unlike the cafeteria owners, can provide unlimited quantities of "food" at virtually no cost to themselves - so long as it is served in bite-sized portions.