BCIs have been doing what Neuralink is showing off since at least the 90s. It is emphatically not a difficult concept to understand that you can put wires in the brain and someone can learn to influence signals on those electrodes. Hell, Deep Brain Stimulation has been an FDA approved use of putting electrodes in your brain since 1997.
The hard parts of BCI are: Electrode sensing, but that's a much less difficult problem nowadays. Implant longevity, probably an unsolvable problem without massive advancements in understanding the body. Brain surgery, which will never not be a huge deal because piercing the barriers that protect the brain is just inherently a huge deal and risky to do.
I'm pretty sure Neuralink is the only one mass killing monkeys though.
Note that Elon has also helped push for the killing of US science funding, like funding used to further study BCIs. How convenient for him that all his competition is suddenly going to struggle.
The hard parts of BCI are: Electrode sensing, but that's a much less difficult problem nowadays. Implant longevity, probably an unsolvable problem without massive advancements in understanding the body. Brain surgery, which will never not be a huge deal because piercing the barriers that protect the brain is just inherently a huge deal and risky to do.
I'm pretty sure Neuralink is the only one mass killing monkeys though.
Note that Elon has also helped push for the killing of US science funding, like funding used to further study BCIs. How convenient for him that all his competition is suddenly going to struggle.