self-encoded QR barcode?

Question

I was wondering if it's possible to create a QR in some file format, say png, then encode the png in QR, such that the resulting QR is the same one you started with?

Answer 1

I don't think so. Each QR code needs to encode the original data along with variable amounts of redundancy.

So to encode the original QR code, you need the encode the same amount of information and additional redundancies, which means the result can't be the same since it encodes more information.