Comment by niemandhier

Optogenetics is one of the most scify technologies I ever had the pleasure of working with:

Imagine implanting a light guide and then setting a translucent port to allow a pathogens safe way to couple into nerves deep inside the brain, imagine transient gene therapies that introduce channelrhodopsins and holographic projections that create volumetric excitation patterns.

Seriously, thinking machines are super impressive, but that stuff really alien in its possible applications.

My prediction is that true neural interfaces will be based on light not wires.