Thinkertoys is described as a handbook of creative-thinking techniques. One technique that appears early in the book introduces white spaces as treasure troves of creative inspiration. It’s kind of like creative steganography┬árather than a covert channel.

I was reminded of Thinkertoys when watching a TED Talk from William Noel last week. Mr. Noel tells the amazing story of using a particle accelerator to reveal and restore texts from Archimedes and a Byzantine prayer book — both on the same pieces of parchment.

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