musing on qr business card

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@@ -49,6 +49,12 @@ i'm sure people have known about the 7/5 approximation for a while now but I jus
 
 so I guess if you're in one of those countries that writes the date before the month, you can celebrate root2 approximation day on July 10th :p
 
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+okay so like im pretty sure my phone could scan a QR code printed on my 600 dpi laser printer as long as I used 3 dots per logical pixel. and [this stackoverflow post](https://stackoverflow.com/questions/11065415/how-much-data-information-can-we-save-store-in-a-qr-code#11065499) says that a 177x177 pixel QR code has about 2 kB of usable data. so, at 600 / 3 dpi, that's about an inch wide QR code, I can easily fit two or maybe four of those on the same business card. I could have an 8 kB business card I bet. although QR apps don't really have a way to stitch multiple pages together, so I'd have to sacrifice the first code to writing a program that can read the other three. or I just have to fit my payload into a single code.
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+what's something fun that's less than 8 kB, that wouldn't already fit on a business card? hmm.
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