Advanced input methods

I wonder if reading brain signals (with wires or something) could be basis for amazing input methods. For example, to type a keyboard we must first think of what we want to do, and that information could theoretically be captured directly and thus allow bypassing use of the keyboard. The keyboard would just be a bootstrapping method for the input, and the wired brain would be free to fine-tune itself to produce “keyboard input” in any way.

There would hardly be any limits for speed for example, as the brain could learn to produce words or sentences directly, perhaps also to leverage external computing services (chips and the internet, or even the brain of some other unlucky chap). I’m saying input is a huge bottleneck for many human activities besides writing, such as drawing, speech. Also we could read, listen and maybe even “see” faster if we didn’t need to use our ineffective eyes and ears for the task.

Well I suppose a lot of evolution has gone to the eyes and the eye-brain interface, so that just inputting RGB data directly to the brain is unlikely to be quite as effective, but something like inputting text into the brain as basic “binary” code with enough redundancy should work. For example if there were 32 input nodes, maybe each repeated n times for redundancy, then the brain could receive one 32 bit input per “pulse”. I think the brain could learn quite easily things like “now I’m taking in Unicode, adjust pulsing to this frequency, echo the message this much”.