Photograph courtesy of the author. In an office-building lobby in San Francisco, there is a wall where about one hundred lava lamps simultaneously flow. They are not just decorating the wall; they are helping to encrypt the internet. The lava wall is owned by a software company called Cloudflare. A camera photographs the lava lamps, whose patterns are constantly shifting. Each image is then digitized and stored as a series of numbers. This analog process produces sequences that, in their organic variance, are more unpredictable than anything a computer could generate on its own. With the help of its lava lamps, Cloudflare encrypts at least 10 percent of global web traffic. As the owner of fifty lava lamps, I felt validated when I found out about Cloudflare’s wall. I bought all the lamps within a six-month span I now refer to as my “lava period.” It started when I broke my lava lamp of eight years by leaving it on for two weeks. The lamp had survived the dumpster I found it i...
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