Beijing Xinzhida Neurotechnology unveiled Neucyber, a BCI implant similar to Neuralink's tech. It enables a monkey to control a robotic arm...

Billions of dollars are flowing into a clutch of specialist companies hunting for treatments for some of the most debilitating ailments.

It's a space attracting much attention, involving invasive brain-computer interfaces (BCI) attached to the brain or electrodes placed on th...