One — Bar Prison

This is the true prison: . The bar is merely the suggestion. III. The Escape Problem: Why Not Just Pick the Lock? A clever reader will object: "Why doesn't the prisoner simply pick the lock on the cuff, or unscrew the bar from the floor?"

You are not sure you aren't already inside one. One Bar Prison

There are no bars on the windows (if a window exists at all). The door may be unlocked. The room may be clean, lit, and temperature-controlled. The only physical barrier between the prisoner and freedom is that single bar and its attached cuff. This is the true prison: