For Elon Musk, giving sight to the blind isn't just a first century phenomenon. The Tesla and X CEO brain implant venture, Neuralink, filed trademark applications with the United States Patent and Trademark Office (USPTO) on March 3 for "Telepathy," "Telekinesis," and "Blindsight," hinting at a future where human thought could transcend traditional communication and control. The company, co-founded by Musk in 2016, is developing a brain-computer interface (BCI), a system that decodes neural signals to operate external devices. Musk has touted telepathy as Neuralink’s first product, designed to empower people with paralysis to "control a computer or phone just...