Chinese start-ups and researchers are racing to bring brain-computer interfaces (BCIs) to market that can be implanted in just a few minutes, as Beijing pushes to nurture home-grown players in the sector to compete with Elon Musk’s Neuralink.The Chinese devices – which enable patients to control digital technology using their thoughts alone – can be inserted via a vein like a stent, unlike conventional BCIs that require patients to undergo brain surgery.StairMed Technology – one of the...