I'm dying to know what you think is close. Most of the big successes have been involved "reading" brain signals and using them to control things like the modul

I'm dying to know what you think is close. Most of the big successes have been involved "reading" brain signals and using them to control things like the modular prosthetic limb or speech synthesis. In contrast, it seems like most of the "write" stuff has been comparatively crude (e.g., phosphenes in visual areas), though the somatosensory stuff (also for the modular limb) is pretty neat. Have I missed something?