Is this actually patentable?
I thought patents were for things that worked. They were meant to reward the thousands of hours spent developing a working light bulb (for example): testing different materials for the glass, the filament, different gases, different voltages and different fittings. The reward for solving practical problems with working solutions.
Since when have "ideas" been patentable? Have facebook actually done the work to develop and test such a system? Or is it just a vague idea?
If it is patentable, why haven't all SF writers patented the ideas in their novels?