This means direct brain interface to computer which means the technology for the matrix is here, albeit not yet solid, but hey, pretty cool. Once upon a time, we had nothing but 4bit computers with 128bytes, and here we are today, in about 40-50years.
Possibly. But it seems to me to hinge upon whether surface-level signals can convey the information of interest. How deep is the cortex and how far in can we detect signals? What kind of resolution is practical or even possible in theory? I would imagine the electromagnetics get fairly fuzzy fast, depending on your time resolution.