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A few random recent photos.
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I just proved that all positions of Rubik's cube can
be solved
in 23 or fewer face turns. (The link is to the proof of 25; the proof
of 23 is the same with just a lot of sets solved.) This proof was made
possible by the generous contribution of CPU time from Sony Pictures
Imageworks, on the same machines used for movies such as Spider-Man 3 and
Surf's Up. I'm currently working on 22. I ran the Big Sur Marathon again this year (April 23th). My time was slower than before (4:15), but considering that I'm only two and a half months after cochlear implant surgery, I consider it a success.
I've been programming the propeller microcontroller. I have fat16 secure digital card support working, and I have been building a robot based on the propeller. I'm also trying to build a retro-style microcomputer based on the chip. I've been spending some time developing Golly, a new Life program. See the results of my cube programming contest! I have some new results on Paterson's Worms. Want to see the various names your machine can be accessed by? I like to swing dance when I can; you can't beat Rob and Diane for classes and fun! I just released a version of Hash Life and a companion display program called hlife. I did some investigations on a new and interesting Life Form. I have been competing on TopCoder. You might be interested in the Radical Eye Website. I'm a founder of Instantis, a startup in Sunnyvale. The official dvips web page still needs some updating. I recently wrote a ray tracer as part of a programming contest. I am co-inventor on seven patents. Can you solve one of my favorite puzzles? Some places I go to frequently:
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