Response to "Sight" video

I enjoyed this video very much and it was very well done and seemed like it could happen. I feel like we could have the technology to make this happen because, it's pretty much like the Google glasses but in contact form, but of course you would have to use some type of medical and other technology for it to be in your brain. But I feel like this probably wouldn't happen due to the fact that it may be seen as unethical because, like in the end of the video people such as programmers could hack into and control people's mind and also there would have to be testing on humans, which is illegal.