Using Bekenstein’s and Hawking’s formulas, physicists can say how much space a single digit from the binary number describing the gas’s entropy takes up on the event horizon’s surface. It’s a small area—around 4 × 10-66 square centimeters. This means you can think of the surface of a black hole’s event horizon as covered in tiny tiles, each carrying one “bit” of the information describing the entropy of everything that’s fallen inside.
