The big idea: should we all be putting chips in our brains?

Implants like Elon Musk’s Neuralink offer great promise, but come with massive ethical questionsAre we on the verge of a new era in which brain disorders become a thing of the past, and we all merge seamlessly with artificial intelligence? This sci-fi future may seem one step closer after Elon Musk’s recent announcement that his biotech company, Neuralink, has implanted its technology into a human brain for the first time. But is mind-melding of this kind really on the way?