Will QR codes be scanned by humans? Yes! But we can’t wait for that day

Payment codes, business card codes, health codes, campus codes, return-to-school codes, bus codes, car-moving codes... It can be said that QR codes have penetrated into every corner of our lives. According to WeChat, during the epidemic, 140 billion QR codes were used on WeChat alone.

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So the question is: Will the QR code be scanned by humans?

The answer is actually very simple: Yes!

But the answer is not that simple.

We know that the size of a QR code is limited, so the number of QR codes is also limited, but this limit is almost "infinite" for us. To scan all the QR codes, it will take a very, very, very, very long... time.

The QR code is a matrix QR code symbol developed by Denso in September 1994. There are now 40 official versions, numbered from Version 1 to Version 40. The smallest is a 21×21 matrix and the largest is 177×177.

Among them, WeChat business card uses a 37×37 matrix specification, while WeChat payment code uses a 25×25 matrix specification.