There’s lots of stuff on BCI. People have been pursuing it for a decades and technology is maturing into handling the quantity of data. The limiting factor is

There’s lots of stuff on BCI. People have been pursuing it for a decades and technology is maturing into handling the quantity of data. The limiting factor is the (apparently) obvious: skulls are thick. You get a terribly weak signal through a skull. Who’s going to get a sub-skull implant so they can play VRChat 2?