ok so it seems like we could store 315 kb of data on a sheet of paper in the form of 105 QR codes
Which is more than some floppy disks but less than most
It's possible to go smaller as this is assuming a 2x2 cm size but that becomes less reliable for actually being scannable by anything
@Mooclown good question, no! so if you printed double sided you could actually fit 630 kilobytes on a sheet of paper, nice
@quiet there's also a bunch of different QR code "versions" which are different sizes and also have different data density. there's also different levels of error correction which will also heavily affect data density
https://www.qrcode.com/en/about/version.html
@Mooclown I think our calculations were using 177 x 177 codes, the largest ones, which come to think of it would probably hate being within 2 centimeters
@quiet are you printing on both side of the paper?