Quinn Norton, a San Francisco journalist, had a tiny magnet implanted in her finger, which enabled her to detect electrical fields.
Bits of my laptop became familiar as tingles and buzzes. Every so often I would pass near something and get an unexpected vibration. Live phone pairs on the sides of houses sometimes startled me.
You might think of self-experimentation as a modern version of “know thyself” but this is “know the rest of the world”.
That’s the freakiest thing I ever heard of… not really, but pretty weird, and quite cool. Is it something that you would consider? What are the benefits, apart from being able to sense stuff…. given that some animals (pigeons, sharks) navigate using the earth’s electromagnetic field, would there ever be a time when enough magnets could be inserted into the human body to enable this?
Would I consider it? Not until the benefits are clearer. Also, my current self-experimentation makes heavy use of my fingers (reaction-time experiments). I wouldn’t want to mess with them.