pre crime

Long before you decided to read this story, your brain may have already said "click that link". By scanning the brains of test subjects as they pressed one button or another – though not a computer mouse – researchers pinpointed a signal that divulged the decision about seven seconds before people ever realised their choice. The discovery has implications for mind-reading, and the nature of free will.

Researchers at the University of Texas in Austin are hoping its smart surveillance system can lend a hand in detecting that pent-up rage. The "computer vision system" can reportedly analyze human movements as they occur, and distinguish between "friendly behaviors such as shaking hands, and aggressive actions like punching, pushing," or launching pocket rockets. The hope is that this creation will make the oh-so-platitudinal jobs of security guards even less demanding by alerting those on duty of violent fits automatically, curing the problem of sleeping through a battle royale in the east parking deck.