APPROACHING THE SINGULARITY: Brain-to-Brain Interface: In Scientific First, Researchers Link Two Rats’ Brains via Computer. “The study, published Thursday morning in the open-access journal Scientific Reports, appears to be the first to allow animals to communicate via a brain-to-brain computer interface. The researchers, led by neuroscientist Miguel Nicolelis at Duke, say the feedback actually went both ways: When the second rat chose the correct lever, the first rat got an additional reward, which apparently encouraged it to send a clearer and stronger brain signal the next time. If that’s true, it would amount to not only communication, but a form of cooperation.”