Science

the actual collecting of our thoughts won't need an actual physical attachment to our brains. Just s a scanner that can be targeted at an individual's head. I say that because articles from the 90s about work to use thoughts, to move cursors on computer screens using thoughts alone with devices that were connected on a person's head, not connected directly to the brain. This work was being done to help severely physically handicapped people achieve more functional communication.
I may be making a wrong conclusion but to me that means they only need more sensitive equipment to access the thoughts from a distance.

I had noticed the research after reading a book by a neuroscientist about the physical aspects of thinking, I don't remember their name but the claim was that a thought is physical and is both a product and creator and has measurable energy.

The earlier research had included using eye movements to move the cursor.

I haven't looked for recent developments and haven't stumbled across any sources discussing the progress and current status. So many topics, so much information and so little time.

And I apologize that I do not possess the scientific vocabulary to make this comment in a more factual, and evidence supported manner. It is just something I found interesting from reading a long time ago.