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Printing Files on Paper That Outlasts the Software
What if you could archive a file by printing it on paper? Optar and PaperBack encode arbitrary binary data as dense dot patterns on A4 sheets — no drive, no power, no cloud account required. This episode digs into how the encoding actually works, from Golay error correction borrowed from the Voyager probes to Reed-Solomon blocks, and what happens when you fold the page twice, carry it in a pocket, and scan it back. Then the hard numbers: kilobytes per page, the gap between a printer's claimed 600 dpi and its real 200 dpi, and what paper, toner, and time actually cost. Finally, the question…
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