We are wired for attachment, and not just to others: to things. I’m sure stone-age people felt a certain nakedness – a rush of dread, a shock of vulnerability – when they got well along in a journey and realized they’d left their flint rock or spear back in the cave, much as we do when, heading down the road, we realize we’ve left our cell phone in our other jacket at home The other day that happened to me. I forgot my iPhone by my reading chair. I panicked when I discovered