Elon Musk's brain-computer interface company Neuralink is planning to test a brain implant in humans in six months, the company has announced. At a'show and tell' event yesterday, Musk said that the company was in the process of submitting paperwork to the US Food and Drug Administration, which has the power to approve or deny the company's application to start clinical trials in humans. When Musk launched Neuralink in 2017, he outlined plans for "a high-bandwidth, long-lasting, biocompatible, bidirectional" brain implant. This brain modem, he claimed, could somehow allow humans to keep pace with artificial intelligence. Now, after years of delays and experiments on monkeys, he's hoping to prove it can be safely implanted in humans.