Why It’s Impossible to Ever Run Out of QR Codes (Even Theoretically)?

QR codes are like super smart stickers that can hold lots and lots of messages, and there’s just no way they’ll ever run out.

Imagine you have a box full of different colored marbles, and each marble has a unique number on it. No matter how many marbles you take out, you can always find another one with a new number. That's kind of like QR codes, except instead of numbers, they use patterns made up of black and white squares.

Every QR code is like a puzzle that tells the reader what message it has inside. The more squares there are in the pattern, the more information it can hold. But even if you make them as big as a playground or as small as a grain of sand, there’s always another combination, just like how you can always find a new number on your marble.

Think about it like having an infinite set of building blocks. No matter how many times you use one block, there's always another one to take its place. QR codes have the same kind of endless power, and that means they’ll never run out, even if we used them for millions of years!