> Downside of covering your MacBook camera: "If you close your Mac notebook with a camera cover installed, you might damage your display because the clearance between the display and keyboard is designed to very tight tolerances. Covering the built-in camera might also interfere with the ambient light sensor and prevent features like automatic brightness and True Tone from working."

Upside: a square of post-it or similar stuck over the camera gives you peace of mind assurance that this particular lens of the digital panopticon isn't watching you.