"This technology uses an electrode array referred to as ECoG, which needs to be surgically placed on the surface of the brain. Current technology does not make it possible to have the signal quality from non-invasive methods."
"Musk defined the neuro lace as a "digital layer above the cortex" that would not necessarily imply extensive surgical insertion but ideally an implant through a vein or artery" well it is still pretty undefined. Essentially neural lace can be anything enabling this kind of communication.
"This technology uses an electrode array referred to as ECoG, which needs to be surgically placed on the surface of the brain. Current technology does not make it possible to have the signal quality from non-invasive methods."
[1] : https://news.ycombinator.com/item?id=19742479