What is the central idea of the article Elon musk

Elon Musk's Neuralink is developing a more efficient way to connect human brains with computers as a means to improve brain function.

Explanation:

The central idea of the article is that Neuralink is developing a more efficient way to connect human brains with computers as a means to improve brain function. They say that this could allow people with neurological conditions, such as dementia, Parkinson's disease, and spinal cord injuries, to control phones or computers with their minds. Musk does mention that artificial intelligence is superior to human intelligence, but that is not the central idea of the article. What matters is how this technology could help people.

i would think it's industries and hydroelectric power

a.   it resulted in widespread unemployment.