An implanted chip in your brain, controlled by your thoughts?
If this technology sounds far off, you might be surprised to learn it's already far advanced.
At the forefront of this is Neuralink, a company co-founded by Elon Musk.
The technology is being promoted on its potential merits of helping the disabled, but experts warn of the expansive ethical safety, security, privacy and even philosophical implications.
Read this week's cover story to learn about Neuralink's technology and the opportunities and ethical questions it raises.