> via a quantitative metric is interesting to me because it's not a binary. It also means that it depends on the situation. If I'm reading a book, then the mo

> via a quantitative metric is interesting to me because it's not a binary. It also means that it depends on the situation. If I'm reading a book, then the movement of my hands feels instant as I reach to turn the page. But back when I played the piano, at times my hands could feel like they are falling behind, not listening to what I'm telling them to do, responding too slowly for what is being demanded of them. Whether or not my hands feel like "me" depends on what I'm trying to have them do. > Does the remote become an equal part of me immediately? I've never really thought of it in terms of time, in part because it is only something to quantify in retrospect. A pencil in my hand feels like a part of me, that responds as I move it. If I press it against a piece of paper, I interpret the sensory input as "felt" from the tip of the pencil, even though I know that I have no nerve endings there. But a pencil on the table isn't part of me. Whether there's a smooth transition between the two as I pick it up and gain control over it, or whether it's something that just "clicks", I'm not sure.