We can send the signals. The real problem is the type of signals are not just electrical but also hormones and chemicals.
We cant fully replicate that just yet, so while we are closer than we’ve ever been to giving paraplegics use of their legs again, we still have a ways to go.
We also have to send the correct voltage/amperage/frequency or itll just fry the nerves or be misunderstood by the muscles/brain. It’s a very complex system
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