Well, they started to "mix" tissues and electronics for a long time already. For example, soviet union had quite deep research into that field in early 50s. Here's a picture of dog's head being "powered" by life support system. Actually, there is a video too, I just forgot a link, but I remember, when I posted it about 10 years ago on parallax forums, they deleted the post - "We don't like to see robotics and live organisms joined that way, and if you will post more like this, your account will be banned".

So we're living in exciting times!
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