I believe you can get this kind of tracking in the same room as the router. Perhaps thankfully, I doubt you can get anywhere close to this level of precision if it's in another room.

Still, I bet you can probably at least determine presence and direction through a wall. The signal is designed to penetrate.

The concept of continuous identity is an illusion. There's no way to be sure your "consciousness" doesn't die every night and wake up as a new person who thinks they are you every morning.

Every moment that passes, our identity evolves into something slightly different than it was before. We modify ourselves simply by existing and observing our surroundings. I am not the same person I was 10 years ago. I just happen to have all (most, even) of his memories.

"You" are a collection of memories. And an algorithm that acts on those memories, along with new input, to make new memories. If your neural configuration is duplicated, there are many of "you" for but one single moment, and then each of them will begin to evolve in different directions. Once this moment passes none of these are the you that was at the moment of duplication. Not even "you".

/thread