I first met Dan in Santa Clara at some event when he came over to our table and showed off some ssh fu. We’d reconnect at events every so often and he’d always share his latest interest. I recall once Dan turning me on to the unique world of software produced and shared primarily by doctors who code by opening a video of a jet engine crash landing in an MRI viewer app. The time after that, he was telling me about going to see the new Star Trek movie that had just come out and how his friend couldn’t see the green alien lady, which led him to build one of the first truly useful applications of augmented reality with his colorblindness app.

When people say Dan Kaminski was a hacker’s hacker, it’s with good cause. Not only did he defend the Internet from itself, but he changed the way people see the world. He put a noticeable dent in the universe.